How to put geometric sequence in this calculator?

First, understand the nature of a geometric sequence, essentially one notes the multiple that makes the common distance between numbers in a set. That multiple is called the ratio. Here is one of the better explanations: https://www.mathsisfun.com/algebra/sequences-sums-geometric.html

I would suggest practicing an example until you are comfortable with how the formula works. For a deeper look into the formula, you might look up the Khan Academy's discussion of geometric sequences and the formula. But if simply looking for problem solving steps, you can look at the links at https://www.effortlessmath.com/math-topics/geometric-sequences/

There are YouTube videos about geomtric sequencing. If you need more assistance, you might try a few of such. Sadly, nothing about math come easy to me and I might suggest seeing a tutor if it is proving elusive.

One geometric mean between 5 and 60555

When an HP calculator displays pend(ing) it is waiting for the user to complete the command. From what I understand you are raising some number to a power. You enter the number (base) you press a shift key of some sort then the [Y^x] and the calculator displays pend. It is waiting for you to enter the exponent.

a detailed how-to video

Use the key that has x to a power (with a geometric square.) the key is located between x^2 and log

Raise a number to the 1/19 power.

For your example, press ( 6 0 7 8 7 6 / 2 5 8 2 9 5 - 1 ) y^x 1 9 1/x =

The square root button is two up from the 9 key, just to the left of the divide key. To calculate the square root of 2, for example, press 2 square-root =

http://www.ticalc.org/pub/83plus/basic/math/series/ Check out the first file on the page, it should be a program to do it

can't quite make out the detail on buttons on the image I have of your calculator but here goes.

say for example, the geometric mean of 2 × 3 × 6 × 8 is the 4th root of 288, or approximately 4.12.

enter nth root first, in this case 4 then shift then root symbol then open bracket, 2x3x6x8, close bracket then = ,
should give you 4.1195 etc