Finding the Third Proportional to 16,871.63 and 25,818.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,871.63 : 25,818.75 = 25,818.75 : x
2. Step 2: Convert to fraction form
   16,871.63/25,818.75 = 25,818.75/x
3. Step 3: Cross multiply
   16,871.63x = 25,818.75 × 25,818.75
4. Step 4: Simplify right side
   16,871.63x = 666,607,851.56
5. Step 5: Solve for x
   x = 666,607,851.56/16,871.63
6. Step 6: Final answer
   x = 39,510.59