Step 1: Rewrite the square root as a fractional exponent. $$ y = x^{1/2} $$ Step 2: Take the logarithm base $10$ (indicated by "LgK" and consistent with previous problems) of both sides of the equation. $$ \log_{10} y = \log_{10} (x^{1/2}) $$ Step 3: Apply the power rule of logarithms, $\log_b (M^c) = c \log_b M$. $$ \log_{10} y = \frac{1}{2} \log_{10} x $$ The logarithmic equation is: $$ \boxed{\log_{10} y = \frac{1}{2} \log_{10} x} $$ Last free one today — make it count tomorrow, or type /upgrade for unlimited.