Finding the Third Proportional to 21,398 and 33,613

Step by Step Solution

1. Step 1: Write the proportion equation
   21,398 : 33,613 = 33,613 : x
2. Step 2: Convert to fraction form
   21,398/33,613 = 33,613/x
3. Step 3: Cross multiply
   21,398x = 33,613 × 33,613
4. Step 4: Simplify right side
   21,398x = 1,129,833,769
5. Step 5: Solve for x
   x = 1,129,833,769/21,398
6. Step 6: Final answer
   x = 52,800.91