Finding the Third Proportional to 74,931 and 156,787.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,931 : 156,787.50 = 156,787.50 : x
2. Step 2: Convert to fraction form
   74,931/156,787.50 = 156,787.50/x
3. Step 3: Cross multiply
   74,931x = 156,787.50 × 156,787.50
4. Step 4: Simplify right side
   74,931x = 24,582,320,156.25
5. Step 5: Solve for x
   x = 24,582,320,156.25/74,931
6. Step 6: Final answer
   x = 328,066.09