Finding the Third Proportional to 87,632 and 191,280

Step by Step Solution

1. Step 1: Write the proportion equation
   87,632 : 191,280 = 191,280 : x
2. Step 2: Convert to fraction form
   87,632/191,280 = 191,280/x
3. Step 3: Cross multiply
   87,632x = 191,280 × 191,280
4. Step 4: Simplify right side
   87,632x = 36,588,038,400
5. Step 5: Solve for x
   x = 36,588,038,400/87,632
6. Step 6: Final answer
   x = 417,519.15