Finding the Third Proportional to 531,451.50 and 807,018

Step by Step Solution

1. Step 1: Write the proportion equation
   531,451.50 : 807,018 = 807,018 : x
2. Step 2: Convert to fraction form
   531,451.50/807,018 = 807,018/x
3. Step 3: Cross multiply
   531,451.50x = 807,018 × 807,018
4. Step 4: Simplify right side
   531,451.50x = 651,278,052,324
5. Step 5: Solve for x
   x = 651,278,052,324/531,451.50
6. Step 6: Final answer
   x = 1,225,470.34