Question

find the meaning proportion between 3 and 27​

Answer 1

Answer:

The mean proportional of 3 and 27 = +√3×27 = +√81 = 9.

Answer 2

Answer:

let us take the mean property be X

3:x::X:27

3/X=X/27

x²=27×3

x²=81

X=√81

X=9

so this is your answer