The halfway point is Eastcleft, Ohio.
Hammond, Indiana
The city of Anchorage in Alaska is roughly halfway between Sydney and Chicago, in terms of distance. However, since there are no direct flights between Sydney and Anchorage, it may not be the most practical midpoint for travel purposes.
Philladaliphia
Chicago, Illinois and Atlanta, Georgia are 719 miles apart. A city located halfway between them would be Bonnieville in Kentucky.
I'm going to assume you're in Michigan and you meant to type Lansing. The halfway point is Farwell.
Kalamazoo
Elk City, OK
Atlanta
From downtown Chicago, IL to Traverse City, MI there are approx. 288 miles.
Ragsdale, Arkansas.
North Royalton,OH