Finding the Third Proportional to 13,224.94 and 20,490.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,224.94 : 20,490.47 = 20,490.47 : x
2. Step 2: Convert to fraction form
   13,224.94/20,490.47 = 20,490.47/x
3. Step 3: Cross multiply
   13,224.94x = 20,490.47 × 20,490.47
4. Step 4: Simplify right side
   13,224.94x = 419,859,309.59
5. Step 5: Solve for x
   x = 419,859,309.59/13,224.94
6. Step 6: Final answer
   x = 31,747.55