Finding the Third Proportional to 543,651 and 799,456.50

Step by Step Solution

1. Step 1: Write the proportion equation
   543,651 : 799,456.50 = 799,456.50 : x
2. Step 2: Convert to fraction form
   543,651/799,456.50 = 799,456.50/x
3. Step 3: Cross multiply
   543,651x = 799,456.50 × 799,456.50
4. Step 4: Simplify right side
   543,651x = 639,130,695,392.25
5. Step 5: Solve for x
   x = 639,130,695,392.25/543,651
6. Step 6: Final answer
   x = 1,175,626.82