Finding the Third Proportional to 104.91 and 171.42

Step by Step Solution

1. Step 1: Write the proportion equation
   104.91 : 171.42 = 171.42 : x
2. Step 2: Convert to fraction form
   104.91/171.42 = 171.42/x
3. Step 3: Cross multiply
   104.91x = 171.42 × 171.42
4. Step 4: Simplify right side
   104.91x = 29,385.46
5. Step 5: Solve for x
   x = 29,385.46/104.91
6. Step 6: Final answer
   x = 280.11