Finding the Third Proportional to 11.34 and 17.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11.34 : 17.31 = 17.31 : x
2. Step 2: Convert to fraction form
   11.34/17.31 = 17.31/x
3. Step 3: Cross multiply
   11.34x = 17.31 × 17.31
4. Step 4: Simplify right side
   11.34x = 299.72
5. Step 5: Solve for x
   x = 299.72/11.34
6. Step 6: Final answer
   x = 26.42