Finding the Third Proportional to 431,571 and 675,526.50

Step by Step Solution

1. Step 1: Write the proportion equation
   431,571 : 675,526.50 = 675,526.50 : x
2. Step 2: Convert to fraction form
   431,571/675,526.50 = 675,526.50/x
3. Step 3: Cross multiply
   431,571x = 675,526.50 × 675,526.50
4. Step 4: Simplify right side
   431,571x = 456,336,052,202.25
5. Step 5: Solve for x
   x = 456,336,052,202.25/431,571
6. Step 6: Final answer
   x = 1,057,383.49