Finding the Third Proportional to 13,217.25 and 20,244.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,217.25 : 20,244.56 = 20,244.56 : x
2. Step 2: Convert to fraction form
   13,217.25/20,244.56 = 20,244.56/x
3. Step 3: Cross multiply
   13,217.25x = 20,244.56 × 20,244.56
4. Step 4: Simplify right side
   13,217.25x = 409,842,310.82
5. Step 5: Solve for x
   x = 409,842,310.82/13,217.25
6. Step 6: Final answer
   x = 31,008.14