Finding the Third Proportional to 16,513.50 and 25,581.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,513.50 : 25,581.75 = 25,581.75 : x
2. Step 2: Convert to fraction form
   16,513.50/25,581.75 = 25,581.75/x
3. Step 3: Cross multiply
   16,513.50x = 25,581.75 × 25,581.75
4. Step 4: Simplify right side
   16,513.50x = 654,425,933.06
5. Step 5: Solve for x
   x = 654,425,933.06/16,513.50
6. Step 6: Final answer
   x = 39,629.75