What is the third letter of the Greek alphabet?

The correct answer, Gamma, is the third letter of the Greek alphabet. The Greek alphabet is composed of 24 letters, starting with Alpha (the first letter) and Beta (the second letter). Following these, Gamma comes next. This sequence is essential in various contexts, including mathematics, science, and engineering, where the Greek letters are frequently used as symbols. Understanding the position of Gamma in the Greek alphabet provides a useful reference for various academic applications, as well as in subjects that incorporate Greek terminology.