Finding the Third Proportional to 12,446.50 and 19,717.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,446.50 : 19,717.88 = 19,717.88 : x
2. Step 2: Convert to fraction form
   12,446.50/19,717.88 = 19,717.88/x
3. Step 3: Cross multiply
   12,446.50x = 19,717.88 × 19,717.88
4. Step 4: Simplify right side
   12,446.50x = 388,794,594.52
5. Step 5: Solve for x
   x = 388,794,594.52/12,446.50
6. Step 6: Final answer
   x = 31,237.26