Finding the Third Proportional to 16,374 and 18,480

Step by Step Solution

1. Step 1: Write the proportion equation
   16,374 : 18,480 = 18,480 : x
2. Step 2: Convert to fraction form
   16,374/18,480 = 18,480/x
3. Step 3: Cross multiply
   16,374x = 18,480 × 18,480
4. Step 4: Simplify right side
   16,374x = 341,510,400
5. Step 5: Solve for x
   x = 341,510,400/16,374
6. Step 6: Final answer
   x = 20,856.87