Finding the Third Proportional to 227,745 and 315,787.50

Step by Step Solution

1. Step 1: Write the proportion equation
   227,745 : 315,787.50 = 315,787.50 : x
2. Step 2: Convert to fraction form
   227,745/315,787.50 = 315,787.50/x
3. Step 3: Cross multiply
   227,745x = 315,787.50 × 315,787.50
4. Step 4: Simplify right side
   227,745x = 99,721,745,156.25
5. Step 5: Solve for x
   x = 99,721,745,156.25/227,745
6. Step 6: Final answer
   x = 437,865.79