Finding the Third Proportional to 13,939 and 21,862

Step by Step Solution

1. Step 1: Write the proportion equation
   13,939 : 21,862 = 21,862 : x
2. Step 2: Convert to fraction form
   13,939/21,862 = 21,862/x
3. Step 3: Cross multiply
   13,939x = 21,862 × 21,862
4. Step 4: Simplify right side
   13,939x = 477,947,044
5. Step 5: Solve for x
   x = 477,947,044/13,939
6. Step 6: Final answer
   x = 34,288.47