Finding the Third Proportional to 518,328 and 799,632

Step by Step Solution

1. Step 1: Write the proportion equation
   518,328 : 799,632 = 799,632 : x
2. Step 2: Convert to fraction form
   518,328/799,632 = 799,632/x
3. Step 3: Cross multiply
   518,328x = 799,632 × 799,632
4. Step 4: Simplify right side
   518,328x = 639,411,335,424
5. Step 5: Solve for x
   x = 639,411,335,424/518,328
6. Step 6: Final answer
   x = 1,233,603.69