Finding the Third Proportional to 523,057.50 and 808,245

Step by Step Solution

1. Step 1: Write the proportion equation
   523,057.50 : 808,245 = 808,245 : x
2. Step 2: Convert to fraction form
   523,057.50/808,245 = 808,245/x
3. Step 3: Cross multiply
   523,057.50x = 808,245 × 808,245
4. Step 4: Simplify right side
   523,057.50x = 653,259,980,025
5. Step 5: Solve for x
   x = 653,259,980,025/523,057.50
6. Step 6: Final answer
   x = 1,248,925.75