Finding the Third Proportional to 518,124 and 799,326.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,124 : 799,326.50 = 799,326.50 : x
2. Step 2: Convert to fraction form
   518,124/799,326.50 = 799,326.50/x
3. Step 3: Cross multiply
   518,124x = 799,326.50 × 799,326.50
4. Step 4: Simplify right side
   518,124x = 638,922,853,602.25
5. Step 5: Solve for x
   x = 638,922,853,602.25/518,124
6. Step 6: Final answer
   x = 1,233,146.61