Finding the Third Proportional to 9,478 and 13,862

Step by Step Solution

1. Step 1: Write the proportion equation
   9,478 : 13,862 = 13,862 : x
2. Step 2: Convert to fraction form
   9,478/13,862 = 13,862/x
3. Step 3: Cross multiply
   9,478x = 13,862 × 13,862
4. Step 4: Simplify right side
   9,478x = 192,155,044
5. Step 5: Solve for x
   x = 192,155,044/9,478
6. Step 6: Final answer
   x = 20,273.80