If x = e^3t & y = e^t, where e is exponential number

Find equation of y in terms of x?

Ans: y^3 = 3x

These are my steps:

x = e^3t

(or) e^(ln x) = e^3t

(or) ln x = 3t

(or) t = (ln x)/3 ------(i)

y = e^t

(or) e^(ln y) = e^t

(or) ln y = t

(or) ln y = (ln x)/3 ------Using (i)

What to do after this???

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EDIT: Question NULL & VOID