Finding the Third Proportional to 21,906 and 33,879

Step by Step Solution

1. Step 1: Write the proportion equation
   21,906 : 33,879 = 33,879 : x
2. Step 2: Convert to fraction form
   21,906/33,879 = 33,879/x
3. Step 3: Cross multiply
   21,906x = 33,879 × 33,879
4. Step 4: Simplify right side
   21,906x = 1,147,786,641
5. Step 5: Solve for x
   x = 1,147,786,641/21,906
6. Step 6: Final answer
   x = 52,395.99