If space is expanding at a rate of 0.000000000078 miles per second per mile, does that mean the Earth gets 1.97 miles wider each year?

Because the Universe is expanding at a rate of 46 miles per second per megaparsec right? So, we have 46/(3260000*180000) miles per second, which is .000000000078 miles per second per mile, right? there are 3150000 seconds in a year and the earth is 7926 miles wide. .000000000078 * 7926 * 3150000 would then be 1.97 miles per year. Is this math correct or did I totally flub it somewhere in there?