Finding the Third Proportional to 11,158.75 and 17,278.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,158.75 : 17,278.38 = 17,278.38 : x
2. Step 2: Convert to fraction form
   11,158.75/17,278.38 = 17,278.38/x
3. Step 3: Cross multiply
   11,158.75x = 17,278.38 × 17,278.38
4. Step 4: Simplify right side
   11,158.75x = 298,542,242.64
5. Step 5: Solve for x
   x = 298,542,242.64/11,158.75
6. Step 6: Final answer
   x = 26,754.09