Finding the Third Proportional to 13,061.25 and 20,256.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.25 : 20,256.75 = 20,256.75 : x
2. Step 2: Convert to fraction form
   13,061.25/20,256.75 = 20,256.75/x
3. Step 3: Cross multiply
   13,061.25x = 20,256.75 × 20,256.75
4. Step 4: Simplify right side
   13,061.25x = 410,335,920.56
5. Step 5: Solve for x
   x = 410,335,920.56/13,061.25
6. Step 6: Final answer
   x = 31,416.28