What is the next number in the series?
\text{3, 5, 11, 29, 83, \_\_\_}}

Let's analyze the difference between consecutive terms in the given series:
* $5-3=2$
* $11-5=6$
* $29-11=18$
* $83-29=54$

Let's look at the sequence of differences: $2,6,18,54,\dots$
Notice that each successive difference is multiplied by $3$:

* $2\times 3=6$
* $6\times 3=18$
* $18\times 3=54$

Following this pattern, the next difference must be:

$$54\times 3=162$$

Therefore, the next number in the series is:

$$83+162=245$$