Finding the Third Proportional to 16,439 and 25,667

Step by Step Solution

1. Step 1: Write the proportion equation
   16,439 : 25,667 = 25,667 : x
2. Step 2: Convert to fraction form
   16,439/25,667 = 25,667/x
3. Step 3: Cross multiply
   16,439x = 25,667 × 25,667
4. Step 4: Simplify right side
   16,439x = 658,794,889
5. Step 5: Solve for x
   x = 658,794,889/16,439
6. Step 6: Final answer
   x = 40,075.12