Finding the Third Proportional to 8,491.50 and 12,727.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,491.50 : 12,727.55 = 12,727.55 : x
2. Step 2: Convert to fraction form
   8,491.50/12,727.55 = 12,727.55/x
3. Step 3: Cross multiply
   8,491.50x = 12,727.55 × 12,727.55
4. Step 4: Simplify right side
   8,491.50x = 161,990,449.46
5. Step 5: Solve for x
   x = 161,990,449.46/8,491.50
6. Step 6: Final answer
   x = 19,076.78