Finding the Third Proportional to 16,319.25 and 25,439.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,319.25 : 25,439.63 = 25,439.63 : x
2. Step 2: Convert to fraction form
   16,319.25/25,439.63 = 25,439.63/x
3. Step 3: Cross multiply
   16,319.25x = 25,439.63 × 25,439.63
4. Step 4: Simplify right side
   16,319.25x = 647,174,520.14
5. Step 5: Solve for x
   x = 647,174,520.14/16,319.25
6. Step 6: Final answer
   x = 39,657.12