Finding the Third Proportional to 518,269.50 and 799,546.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,269.50 : 799,546.50 = 799,546.50 : x
2. Step 2: Convert to fraction form
   518,269.50/799,546.50 = 799,546.50/x
3. Step 3: Cross multiply
   518,269.50x = 799,546.50 × 799,546.50
4. Step 4: Simplify right side
   518,269.50x = 639,274,605,662.25
5. Step 5: Solve for x
   x = 639,274,605,662.25/518,269.50
6. Step 6: Final answer
   x = 1,233,479.12