Petezilla

In Pete's first two weeks, he grew an inch, to 20.5 inches. In the eleven days after he dropped the usual bit of weight after birth, he gained 21 ounces, ending up at eight pounds, six ounces. Extrapolating those rates (.5 inches/week, 1.9 ounces/day), we see that when Pete turns 21, he will be just over 47 feet tall and will weigh about 915 pounds. I'm sure he'll carry it well.