Finding the Third Proportional to 16,636.50 and 25,386.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,636.50 : 25,386.75 = 25,386.75 : x
2. Step 2: Convert to fraction form
   16,636.50/25,386.75 = 25,386.75/x
3. Step 3: Cross multiply
   16,636.50x = 25,386.75 × 25,386.75
4. Step 4: Simplify right side
   16,636.50x = 644,487,075.56
5. Step 5: Solve for x
   x = 644,487,075.56/16,636.50
6. Step 6: Final answer
   x = 38,739.34