1. Let's clarify the problem: you want to understand how to end up with three things in a mathematical or logical context. 2. If this refers to counting or combinations, one common approach is to consider the number of ways to select or arrange three items. 3. For example, if you start with a set of items and want to choose three, you can use combinations: $$\binom{n}{3} = \frac{n!}{3!(n-3)!}$$ where $n$ is the total number of items. 4. If you want to arrange three things in order, use permutations: $$P(n,3) = \frac{n!}{(n-3)!}$$. 5. If the question is about ending up with three items after some process, please specify the context (e.g., algebraic expressions, sets, probability). 6. Without more details, the general principle is to identify the initial conditions and the operations leading to three items. 7. Feel free to provide more information for a precise answer.