12, 32, 72, 152,_____,______

Let 12, 32, 72, 152,x,y

The next number is equal to the double the difference between them.

32 - 12 = 20

72 - 32 = 40

152 - 72 = 80

x - 152 = 160

x = 312

y - x = 320

y - 312 = 320

y = 632

Final Answer: Hence, the correct sequence is 12, 32, 72, 152, 312, 632.