Finding the Third Proportional to 10,510 and 16,403

Step by Step Solution

1. Step 1: Write the proportion equation
   10,510 : 16,403 = 16,403 : x
2. Step 2: Convert to fraction form
   10,510/16,403 = 16,403/x
3. Step 3: Cross multiply
   10,510x = 16,403 × 16,403
4. Step 4: Simplify right side
   10,510x = 269,058,409
5. Step 5: Solve for x
   x = 269,058,409/10,510
6. Step 6: Final answer
   x = 25,600.23