Finding the Third Proportional to 250,648 and 545,468

Step by Step Solution

1. Step 1: Write the proportion equation
   250,648 : 545,468 = 545,468 : x
2. Step 2: Convert to fraction form
   250,648/545,468 = 545,468/x
3. Step 3: Cross multiply
   250,648x = 545,468 × 545,468
4. Step 4: Simplify right side
   250,648x = 297,535,339,024
5. Step 5: Solve for x
   x = 297,535,339,024/250,648
6. Step 6: Final answer
   x = 1,187,064.48