Answer
The curve reaches $3$ft in height at approximately $1084588$mi to the right of the origin.
Work Step by Step
$3$ft=$3\times12$in=$36$in
let $y=\log_2x=36$in
$x=2^{36}$in$=68719476736$in$\approx1084587.7$mi$\approx1084588$mi
$\therefore$ The curve reaches $3$ft in height at approximately $1084588$mi to the right of the origin.
