Finding the Third Proportional to 648,510 and 923,814

Step by Step Solution

1. Step 1: Write the proportion equation
   648,510 : 923,814 = 923,814 : x
2. Step 2: Convert to fraction form
   648,510/923,814 = 923,814/x
3. Step 3: Cross multiply
   648,510x = 923,814 × 923,814
4. Step 4: Simplify right side
   648,510x = 853,432,306,596
5. Step 5: Solve for x
   x = 853,432,306,596/648,510
6. Step 6: Final answer
   x = 1,315,989.43