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    The third proportional to 16 and 36 is:
    Question

    The third proportional to 16 and 36 is:

    A.

    49

    B.

    64

    C.

    81

    D.

    144

    Correct option is C

    Given:

    We are to find the third proportional to 16 and 36.

    Formula Used:

    x =b2a \frac{b^2}{a}

    Solution:

    x =36216=129616=81= \frac{36^2}{16} = \frac{1296}{16} = 81

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