Question

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Answer 1

Step-by-step explanation:

Let the mean proportional be 'x'.

$\frac{ \frac{1}{2} }{x} = \frac{x}{ \frac{1}{72} }$

$= > {x}^{2} = \frac{1}{72} \times \frac{1}{2}$

$= > {x}^{2} = \frac{1}{144}$

$= > x = \sqrt{ \frac{1}{144} }$

$= > x = \frac{1}{12}$

Answer :- The mean proportion is 1/12.