To find the third term of a geometric sequence, we can use the formula for the nth term of a geometric sequence, which is:
an = a1 × r(n-1)
Where:
- an is the nth term of the sequence.
- a1 is the first term of the sequence.
- r is the common ratio.
- n is the term number.
In this case, the first term a1 is 3 and the common ratio r is also 3. We are looking for the third term, so we set n = 3.
Now we can substitute the values into the formula:
a3 = 3 × 3(3-1)
Calculating this step by step:
- a3 = 3 × 32
- a3 = 3 × 9
- a3 = 27
Therefore, the third term of the sequence is 27.