Finding the Third Proportional to 249,456.50 and 548,739

Step by Step Solution

1. Step 1: Write the proportion equation
   249,456.50 : 548,739 = 548,739 : x
2. Step 2: Convert to fraction form
   249,456.50/548,739 = 548,739/x
3. Step 3: Cross multiply
   249,456.50x = 548,739 × 548,739
4. Step 4: Simplify right side
   249,456.50x = 301,114,490,121
5. Step 5: Solve for x
   x = 301,114,490,121/249,456.50
6. Step 6: Final answer
   x = 1,207,082.16