Finding the Third Proportional to 21,890 and 33,805

Step by Step Solution

1. Step 1: Write the proportion equation
   21,890 : 33,805 = 33,805 : x
2. Step 2: Convert to fraction form
   21,890/33,805 = 33,805/x
3. Step 3: Cross multiply
   21,890x = 33,805 × 33,805
4. Step 4: Simplify right side
   21,890x = 1,142,778,025
5. Step 5: Solve for x
   x = 1,142,778,025/21,890
6. Step 6: Final answer
   x = 52,205.48