Finding the Third Proportional to 250,414.50 and 548,578.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,414.50 : 548,578.50 = 548,578.50 : x
2. Step 2: Convert to fraction form
   250,414.50/548,578.50 = 548,578.50/x
3. Step 3: Cross multiply
   250,414.50x = 548,578.50 × 548,578.50
4. Step 4: Simplify right side
   250,414.50x = 300,938,370,662.25
5. Step 5: Solve for x
   x = 300,938,370,662.25/250,414.50
6. Step 6: Final answer
   x = 1,201,760.96