Finding the Third Proportional to 11,399.50 and 17,251

Step by Step Solution

1. Step 1: Write the proportion equation
   11,399.50 : 17,251 = 17,251 : x
2. Step 2: Convert to fraction form
   11,399.50/17,251 = 17,251/x
3. Step 3: Cross multiply
   11,399.50x = 17,251 × 17,251
4. Step 4: Simplify right side
   11,399.50x = 297,597,001
5. Step 5: Solve for x
   x = 297,597,001/11,399.50
6. Step 6: Final answer
   x = 26,106.15