Finding the Third Proportional to 268,245 and 548,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   268,245 : 548,791.50 = 548,791.50 : x
2. Step 2: Convert to fraction form
   268,245/548,791.50 = 548,791.50/x
3. Step 3: Cross multiply
   268,245x = 548,791.50 × 548,791.50
4. Step 4: Simplify right side
   268,245x = 301,172,110,472.25
5. Step 5: Solve for x
   x = 301,172,110,472.25/268,245
6. Step 6: Final answer
   x = 1,122,750.14