< In an arithmetic sequence, the nth term an is given by the formula a a + (n-1)d, where a is the first term and d is the common difference. Similarly, in a geometric sequence, the nth term is given by an a,1, Here r is the common ratio. Use these formulas to determine the indicated term in the given sequence. The seventh term of 3, 12, 48, 192, ... The seventh term of the sequence is (Simplify your answer.)