Finding the Third Proportional to 8,878.99 and 12,495.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,878.99 : 12,495.52 = 12,495.52 : x
2. Step 2: Convert to fraction form
   8,878.99/12,495.52 = 12,495.52/x
3. Step 3: Cross multiply
   8,878.99x = 12,495.52 × 12,495.52
4. Step 4: Simplify right side
   8,878.99x = 156,137,910.73
5. Step 5: Solve for x
   x = 156,137,910.73/8,878.99
6. Step 6: Final answer
   x = 17,585.09