Finding the Third Proportional to 15,981.75 and 20,297.25

Step by Step Solution

1. Step 1: Write the proportion equation
   15,981.75 : 20,297.25 = 20,297.25 : x
2. Step 2: Convert to fraction form
   15,981.75/20,297.25 = 20,297.25/x
3. Step 3: Cross multiply
   15,981.75x = 20,297.25 × 20,297.25
4. Step 4: Simplify right side
   15,981.75x = 411,978,357.56
5. Step 5: Solve for x
   x = 411,978,357.56/15,981.75
6. Step 6: Final answer
   x = 25,778.05