Finding the Third Proportional to 40,917 and 55,538

Step by Step Solution

1. Step 1: Write the proportion equation
   40,917 : 55,538 = 55,538 : x
2. Step 2: Convert to fraction form
   40,917/55,538 = 55,538/x
3. Step 3: Cross multiply
   40,917x = 55,538 × 55,538
4. Step 4: Simplify right side
   40,917x = 3,084,469,444
5. Step 5: Solve for x
   x = 3,084,469,444/40,917
6. Step 6: Final answer
   x = 75,383.57