Finding the Third Proportional to 111.25 and 173.13

Step by Step Solution

1. Step 1: Write the proportion equation
   111.25 : 173.13 = 173.13 : x
2. Step 2: Convert to fraction form
   111.25/173.13 = 173.13/x
3. Step 3: Cross multiply
   111.25x = 173.13 × 173.13
4. Step 4: Simplify right side
   111.25x = 29,972.27
5. Step 5: Solve for x
   x = 29,972.27/111.25
6. Step 6: Final answer
   x = 269.41