Finding the Third Proportional to 16,645.50 and 25,818.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,645.50 : 25,818.75 = 25,818.75 : x
2. Step 2: Convert to fraction form
   16,645.50/25,818.75 = 25,818.75/x
3. Step 3: Cross multiply
   16,645.50x = 25,818.75 × 25,818.75
4. Step 4: Simplify right side
   16,645.50x = 666,607,851.56
5. Step 5: Solve for x
   x = 666,607,851.56/16,645.50
6. Step 6: Final answer
   x = 40,047.33