The third planet from the Sun is Earth itself. However, if we’re thinking in terms of planets in our solar system that are ordered by distance from the Sun, the third planet from the Sun is actually Earth and not another planet.
To clarify, the planets in our solar system are arranged as follows: Mercury is the first planet, Venus is the second, and Earth is the third. This order is determined based on their proximity to the Sun. Therefore, when referring to the third planet, it is crucial to understand that Earth occupies that position in the solar system’s layout.