How far from the more massive object, should you tie your middle, " pivot" string?

While creating a mobile, you tie a 0.38 kg object to one end of a 0.68 m rod, and a 0.60 kg object to the other end of that same rod. How far from the more massive object, should you tie your middle, "pivot" string? *Answer in meters, but do not include a unit. Round to 2 decimal places. Type your