Finding the Third Proportional to 16,407 and 25,453

Step by Step Solution

1. Step 1: Write the proportion equation
   16,407 : 25,453 = 25,453 : x
2. Step 2: Convert to fraction form
   16,407/25,453 = 25,453/x
3. Step 3: Cross multiply
   16,407x = 25,453 × 25,453
4. Step 4: Simplify right side
   16,407x = 647,855,209
5. Step 5: Solve for x
   x = 647,855,209/16,407
6. Step 6: Final answer
   x = 39,486.51