Finding the Third Proportional to 8,656.88 and 18,961.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,656.88 : 18,961.59 = 18,961.59 : x
2. Step 2: Convert to fraction form
   8,656.88/18,961.59 = 18,961.59/x
3. Step 3: Cross multiply
   8,656.88x = 18,961.59 × 18,961.59
4. Step 4: Simplify right side
   8,656.88x = 359,542,037.54
5. Step 5: Solve for x
   x = 359,542,037.54/8,656.88
6. Step 6: Final answer
   x = 41,532.54