The point at which the two masses could be concentrated and have the same gravitational effect as the original distribution, their gravitational center, is at distance of 1.264r.

Please remove spaces between words.
Thepointatwhichthetwomassescouldbeconcentratedandhavethesamegravitationaleffectastheoriginaldistribution,theirgravitationalcenter,isatdistanceof1.264r.