Finding the Third Proportional to 548.02 and 718.56

Step by Step Solution

1. Step 1: Write the proportion equation
   548.02 : 718.56 = 718.56 : x
2. Step 2: Convert to fraction form
   548.02/718.56 = 718.56/x
3. Step 3: Cross multiply
   548.02x = 718.56 × 718.56
4. Step 4: Simplify right side
   548.02x = 516,326.45
5. Step 5: Solve for x
   x = 516,326.45/548.02
6. Step 6: Final answer
   x = 942.17