Finding the Third Proportional to 82.90 and 104.91

Step by Step Solution

1. Step 1: Write the proportion equation
   82.90 : 104.91 = 104.91 : x
2. Step 2: Convert to fraction form
   82.90/104.91 = 104.91/x
3. Step 3: Cross multiply
   82.90x = 104.91 × 104.91
4. Step 4: Simplify right side
   82.90x = 11,005.32
5. Step 5: Solve for x
   x = 11,005.32/82.90
6. Step 6: Final answer
   x = 132.76