Finding the Third Proportional to 87,385 and 191,124

Step by Step Solution

1. Step 1: Write the proportion equation
   87,385 : 191,124 = 191,124 : x
2. Step 2: Convert to fraction form
   87,385/191,124 = 191,124/x
3. Step 3: Cross multiply
   87,385x = 191,124 × 191,124
4. Step 4: Simplify right side
   87,385x = 36,528,383,376
5. Step 5: Solve for x
   x = 36,528,383,376/87,385
6. Step 6: Final answer
   x = 418,016.63