Finding the Third Proportional to 12,724.59 and 19,429.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,724.59 : 19,429.88 = 19,429.88 : x
2. Step 2: Convert to fraction form
   12,724.59/19,429.88 = 19,429.88/x
3. Step 3: Cross multiply
   12,724.59x = 19,429.88 × 19,429.88
4. Step 4: Simplify right side
   12,724.59x = 377,520,042.52
5. Step 5: Solve for x
   x = 377,520,042.52/12,724.59
6. Step 6: Final answer
   x = 29,668.53