Finding the Third Proportional to 21,900 and 33,018

Step by Step Solution

1. Step 1: Write the proportion equation
   21,900 : 33,018 = 33,018 : x
2. Step 2: Convert to fraction form
   21,900/33,018 = 33,018/x
3. Step 3: Cross multiply
   21,900x = 33,018 × 33,018
4. Step 4: Simplify right side
   21,900x = 1,090,188,324
5. Step 5: Solve for x
   x = 1,090,188,324/21,900
6. Step 6: Final answer
   x = 49,780.29