Finding the Third Proportional to 40.88 and 55.56

Step by Step Solution

1. Step 1: Write the proportion equation
   40.88 : 55.56 = 55.56 : x
2. Step 2: Convert to fraction form
   40.88/55.56 = 55.56/x
3. Step 3: Cross multiply
   40.88x = 55.56 × 55.56
4. Step 4: Simplify right side
   40.88x = 3,087.19
5. Step 5: Solve for x
   x = 3,087.19/40.88
6. Step 6: Final answer
   x = 75.53