Finding the Third Proportional to 252.28 and 548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   252.28 : 548.72 = 548.72 : x
2. Step 2: Convert to fraction form
   252.28/548.72 = 548.72/x
3. Step 3: Cross multiply
   252.28x = 548.72 × 548.72
4. Step 4: Simplify right side
   252.28x = 301,092.27
5. Step 5: Solve for x
   x = 301,092.27/252.28
6. Step 6: Final answer
   x = 1,193.48