Finding the Third Proportional to 631,111.50 and 862,234.88

Step by Step Solution

1. Step 1: Write the proportion equation
   631,111.50 : 862,234.88 = 862,234.88 : x
2. Step 2: Convert to fraction form
   631,111.50/862,234.88 = 862,234.88/x
3. Step 3: Cross multiply
   631,111.50x = 862,234.88 × 862,234.88
4. Step 4: Simplify right side
   631,111.50x = 743,448,979,666.27
5. Step 5: Solve for x
   x = 743,448,979,666.27/631,111.50
6. Step 6: Final answer
   x = 1,177,999.42