Finding the Third Proportional to 28.79 and 40.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28.79 : 40.82 = 40.82 : x
2. Step 2: Convert to fraction form
   28.79/40.82 = 40.82/x
3. Step 3: Cross multiply
   28.79x = 40.82 × 40.82
4. Step 4: Simplify right side
   28.79x = 1,665.98
5. Step 5: Solve for x
   x = 1,665.98/28.79
6. Step 6: Final answer
   x = 57.86