Finding the Third Proportional to 250,456 and 548,666

Step by Step Solution

1. Step 1: Write the proportion equation
   250,456 : 548,666 = 548,666 : x
2. Step 2: Convert to fraction form
   250,456/548,666 = 548,666/x
3. Step 3: Cross multiply
   250,456x = 548,666 × 548,666
4. Step 4: Simplify right side
   250,456x = 301,034,379,556
5. Step 5: Solve for x
   x = 301,034,379,556/250,456
6. Step 6: Final answer
   x = 1,201,945.17