Finding the Third Proportional to 16,989.75 and 25,859.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,989.75 : 25,859.25 = 25,859.25 : x
2. Step 2: Convert to fraction form
   16,989.75/25,859.25 = 25,859.25/x
3. Step 3: Cross multiply
   16,989.75x = 25,859.25 × 25,859.25
4. Step 4: Simplify right side
   16,989.75x = 668,700,810.56
5. Step 5: Solve for x
   x = 668,700,810.56/16,989.75
6. Step 6: Final answer
   x = 39,359.07