We are given
Distance =223,679,248 miles
so, we get
[tex]D=223,679,248 miles[/tex]
Total time to complete is 88 days
so, we get
[tex]T=88 days[/tex]
now, we can find speed
we know that
speed = distance / time
[tex]s=\frac{D}{T}[/tex]
now, we can plug values
and we get
[tex]s=\frac{223679248}{88}[/tex]
[tex]s=2541809.6363mile/day[/tex].............Answer