Finding the Third Proportional to 11.71 and 23.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11.71 : 23.89 = 23.89 : x
2. Step 2: Convert to fraction form
   11.71/23.89 = 23.89/x
3. Step 3: Cross multiply
   11.71x = 23.89 × 23.89
4. Step 4: Simplify right side
   11.71x = 570.67
5. Step 5: Solve for x
   x = 570.67/11.71
6. Step 6: Final answer
   x = 48.75