Question

third propotional to 3 and 9​

Answer 1

3:9::9:x
N solving we get
x=27
Third proportional

Answer 2

Step-by-step explanation:

Let, the third proportional be x

3 ,9and x are in continued proportion .

3:9::9:x

3/9=9/x

or, 3x=9*9

or, 3x=81

or, x=81/3

or, x=27

Ans] The required third proportion is 27