What will be the next number in the series:

19, 37, 73, 145, ? ​​

Given: 19, 37, 73, 145, ?

Logic: Each difference double the previous one.

37 − 19 = 18

73 − 37 = 36

145 − 73 = 72

Next difference = 72 × 2 = 144

Next term is: 145 + 144 = 289

Thus, correct option is (b).