Finding the Third Proportional to 8,493.75 and 12,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,493.75 : 12,490.50 = 12,490.50 : x
2. Step 2: Convert to fraction form
   8,493.75/12,490.50 = 12,490.50/x
3. Step 3: Cross multiply
   8,493.75x = 12,490.50 × 12,490.50
4. Step 4: Simplify right side
   8,493.75x = 156,012,590.25
5. Step 5: Solve for x
   x = 156,012,590.25/8,493.75
6. Step 6: Final answer
   x = 18,367.93