Finding the Third Proportional to 21,990 and 33,336

Step by Step Solution

1. Step 1: Write the proportion equation
   21,990 : 33,336 = 33,336 : x
2. Step 2: Convert to fraction form
   21,990/33,336 = 33,336/x
3. Step 3: Cross multiply
   21,990x = 33,336 × 33,336
4. Step 4: Simplify right side
   21,990x = 1,111,288,896
5. Step 5: Solve for x
   x = 1,111,288,896/21,990
6. Step 6: Final answer
   x = 50,536.10