What is your plan?
Arithmetic Progression: a2 - a1 = a3 - a2
Geometric Progression: g2/g1 = g3/g2
Just a few hints. There are more.
Positive numbers a1, a2, a3 are in arithmetic progression, while positive numbers g1, g2, g3 are in geometric progression. Given that a1 + g1 = 26, a2 + g2 = 50, a3 + g3 = 114, and a1 + a2 + a3 = 60, find both progressions.
***Please note the 1, 2 and 3 are meant to be subscripts
a2-d, a2, a2+d
so that (3)a2=60 so a2=20.
Let the Geometric progression be
(g2)/r, g2, r(g2)
allows you to solve for "r" and write out the Geometric sequence.
You can calculate the terms of the Arithmetic sequence from those.