Finding the Third Proportional to 249,347.50 and 548,510

Step by Step Solution

1. Step 1: Write the proportion equation
   249,347.50 : 548,510 = 548,510 : x
2. Step 2: Convert to fraction form
   249,347.50/548,510 = 548,510/x
3. Step 3: Cross multiply
   249,347.50x = 548,510 × 548,510
4. Step 4: Simplify right side
   249,347.50x = 300,863,220,100
5. Step 5: Solve for x
   x = 300,863,220,100/249,347.50
6. Step 6: Final answer
   x = 1,206,602.11