Finding the Third Proportional to 16,405 and 24,690

Step by Step Solution

1. Step 1: Write the proportion equation
   16,405 : 24,690 = 24,690 : x
2. Step 2: Convert to fraction form
   16,405/24,690 = 24,690/x
3. Step 3: Cross multiply
   16,405x = 24,690 × 24,690
4. Step 4: Simplify right side
   16,405x = 609,596,100
5. Step 5: Solve for x
   x = 609,596,100/16,405
6. Step 6: Final answer
   x = 37,159.16