Finding the Third Proportional to 8,396.58 and 13,105.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,396.58 : 13,105.55 = 13,105.55 : x
2. Step 2: Convert to fraction form
   8,396.58/13,105.55 = 13,105.55/x
3. Step 3: Cross multiply
   8,396.58x = 13,105.55 × 13,105.55
4. Step 4: Simplify right side
   8,396.58x = 171,755,358.89
5. Step 5: Solve for x
   x = 171,755,358.89/8,396.58
6. Step 6: Final answer
   x = 20,455.40