Finding the Third Proportional to 518,265 and 799,537.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,265 : 799,537.50 = 799,537.50 : x
2. Step 2: Convert to fraction form
   518,265/799,537.50 = 799,537.50/x
3. Step 3: Cross multiply
   518,265x = 799,537.50 × 799,537.50
4. Step 4: Simplify right side
   518,265x = 639,260,213,906.25
5. Step 5: Solve for x
   x = 639,260,213,906.25/518,265
6. Step 6: Final answer
   x = 1,233,462.06