Finding the Third Proportional to 8,269.59 and 12,039.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,269.59 : 12,039.89 = 12,039.89 : x
2. Step 2: Convert to fraction form
   8,269.59/12,039.89 = 12,039.89/x
3. Step 3: Cross multiply
   8,269.59x = 12,039.89 × 12,039.89
4. Step 4: Simplify right side
   8,269.59x = 144,958,966.26
5. Step 5: Solve for x
   x = 144,958,966.26/8,269.59
6. Step 6: Final answer
   x = 17,529.15