Finding the Third Proportional to 16,999.50 and 25,787.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,999.50 : 25,787.25 = 25,787.25 : x
2. Step 2: Convert to fraction form
   16,999.50/25,787.25 = 25,787.25/x
3. Step 3: Cross multiply
   16,999.50x = 25,787.25 × 25,787.25
4. Step 4: Simplify right side
   16,999.50x = 664,982,262.56
5. Step 5: Solve for x
   x = 664,982,262.56/16,999.50
6. Step 6: Final answer
   x = 39,117.75