Finding the Third Proportional to 21,793 and 30,689

Step by Step Solution

1. Step 1: Write the proportion equation
   21,793 : 30,689 = 30,689 : x
2. Step 2: Convert to fraction form
   21,793/30,689 = 30,689/x
3. Step 3: Cross multiply
   21,793x = 30,689 × 30,689
4. Step 4: Simplify right side
   21,793x = 941,814,721
5. Step 5: Solve for x
   x = 941,814,721/21,793
6. Step 6: Final answer
   x = 43,216.39