Finding the Third Proportional to 87,330 and 131,503

Step by Step Solution

1. Step 1: Write the proportion equation
   87,330 : 131,503 = 131,503 : x
2. Step 2: Convert to fraction form
   87,330/131,503 = 131,503/x
3. Step 3: Cross multiply
   87,330x = 131,503 × 131,503
4. Step 4: Simplify right side
   87,330x = 17,293,039,009
5. Step 5: Solve for x
   x = 17,293,039,009/87,330
6. Step 6: Final answer
   x = 198,019.46