Finding the Third Proportional to 548.72 and 1,314.42

Step by Step Solution

1. Step 1: Write the proportion equation
   548.72 : 1,314.42 = 1,314.42 : x
2. Step 2: Convert to fraction form
   548.72/1,314.42 = 1,314.42/x
3. Step 3: Cross multiply
   548.72x = 1,314.42 × 1,314.42
4. Step 4: Simplify right side
   548.72x = 1,727,704.87
5. Step 5: Solve for x
   x = 1,727,704.87/548.72
6. Step 6: Final answer
   x = 3,148.62