Finding the Third Proportional to 142,522 and 307,876

Step by Step Solution

1. Step 1: Write the proportion equation
   142,522 : 307,876 = 307,876 : x
2. Step 2: Convert to fraction form
   142,522/307,876 = 307,876/x
3. Step 3: Cross multiply
   142,522x = 307,876 × 307,876
4. Step 4: Simplify right side
   142,522x = 94,787,631,376
5. Step 5: Solve for x
   x = 94,787,631,376/142,522
6. Step 6: Final answer
   x = 665,073.68