Finding the Third Proportional to 11,609.89 and 17,440.47

Step by Step Solution

1. Step 1: Write the proportion equation
   11,609.89 : 17,440.47 = 17,440.47 : x
2. Step 2: Convert to fraction form
   11,609.89/17,440.47 = 17,440.47/x
3. Step 3: Cross multiply
   11,609.89x = 17,440.47 × 17,440.47
4. Step 4: Simplify right side
   11,609.89x = 304,170,018.35
5. Step 5: Solve for x
   x = 304,170,018.35/11,609.89
6. Step 6: Final answer
   x = 26,199.21