Finding the Third Proportional to 8,386.88 and 17,137.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,386.88 : 17,137.88 = 17,137.88 : x
2. Step 2: Convert to fraction form
   8,386.88/17,137.88 = 17,137.88/x
3. Step 3: Cross multiply
   8,386.88x = 17,137.88 × 17,137.88
4. Step 4: Simplify right side
   8,386.88x = 293,706,759.52
5. Step 5: Solve for x
   x = 293,706,759.52/8,386.88
6. Step 6: Final answer
   x = 35,019.81