Finding the Third Proportional to 87,870.38 and 191,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,870.38 : 191,641.50 = 191,641.50 : x
2. Step 2: Convert to fraction form
   87,870.38/191,641.50 = 191,641.50/x
3. Step 3: Cross multiply
   87,870.38x = 191,641.50 × 191,641.50
4. Step 4: Simplify right side
   87,870.38x = 36,726,464,522.25
5. Step 5: Solve for x
   x = 36,726,464,522.25/87,870.38
6. Step 6: Final answer
   x = 417,961.85