Finding the Third Proportional to 577,462.50 and 898,831.50

Step by Step Solution

1. Step 1: Write the proportion equation
   577,462.50 : 898,831.50 = 898,831.50 : x
2. Step 2: Convert to fraction form
   577,462.50/898,831.50 = 898,831.50/x
3. Step 3: Cross multiply
   577,462.50x = 898,831.50 × 898,831.50
4. Step 4: Simplify right side
   577,462.50x = 807,898,065,392.25
5. Step 5: Solve for x
   x = 807,898,065,392.25/577,462.50
6. Step 6: Final answer
   x = 1,399,048.54