Finding the Third Proportional to 543,179 and 798,120.50

Step by Step Solution

1. Step 1: Write the proportion equation
   543,179 : 798,120.50 = 798,120.50 : x
2. Step 2: Convert to fraction form
   543,179/798,120.50 = 798,120.50/x
3. Step 3: Cross multiply
   543,179x = 798,120.50 × 798,120.50
4. Step 4: Simplify right side
   543,179x = 636,996,332,520.25
5. Step 5: Solve for x
   x = 636,996,332,520.25/543,179
6. Step 6: Final answer
   x = 1,172,719.00