Prove that $a\sqrt{\log_{a}b}=b\sqrt{\log_{b}a}$.

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To prove $a\sqrt{\log_{a}b}=b\sqrt{\log_{b}a}$.

I take $y=a\sqrt{\log_{a}b}$

$\Rightarrow y^{2}=a^{2}\log_{a}b$

$\Rightarrow \bigg(\dfrac{y}{a}\bigg)^{2}=\log_{a}b$

$\Rightarrow a^{\big(\frac{y}{a}\big)^{2}}=b$, then I don't understand how to proceed.

please some one help me. Thank you.

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You were to prove that $\forall a,b$ $$a^2 {\log b\over \log a}=b^2{\log a\over \log b}\\\implies {a\over \log a }=\pm {b\over \log b}$$

which is not true.Take $a=2,b=3$

LHS$=6.64$ RHS$=6.28$