Finding the Third Proportional to 11,137.50 and 17,258.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,137.50 : 17,258.06 = 17,258.06 : x
2. Step 2: Convert to fraction form
   11,137.50/17,258.06 = 17,258.06/x
3. Step 3: Cross multiply
   11,137.50x = 17,258.06 × 17,258.06
4. Step 4: Simplify right side
   11,137.50x = 297,840,721.25
5. Step 5: Solve for x
   x = 297,840,721.25/11,137.50
6. Step 6: Final answer
   x = 26,742.15