Convert power trendline equation to formula to fill in missing data

Hi everyone,

I'm presented with the following issue and despite many searches online cannot resolve it at all.

I've created a scatter graph for various data points and wish to fill in the blanks based on a power trendline curve.

The curve equation is: y = 5E-39x9.227

I have no idea as to how to turn this into a usable formula to fill in the blank cells of data.
Does anyone have any inkling about how to do this please?

It's unclear from the equation what you trying to do.

maybe this:

=5*10^-39 * A2^9.227

If your data start from A2 and below.