Finding the Third Proportional to 20,142 and 33,288

Step by Step Solution

1. Step 1: Write the proportion equation
   20,142 : 33,288 = 33,288 : x
2. Step 2: Convert to fraction form
   20,142/33,288 = 33,288/x
3. Step 3: Cross multiply
   20,142x = 33,288 × 33,288
4. Step 4: Simplify right side
   20,142x = 1,108,090,944
5. Step 5: Solve for x
   x = 1,108,090,944/20,142
6. Step 6: Final answer
   x = 55,013.95