Finding the Third Proportional to 39,142 and 55,957

Step by Step Solution

1. Step 1: Write the proportion equation
   39,142 : 55,957 = 55,957 : x
2. Step 2: Convert to fraction form
   39,142/55,957 = 55,957/x
3. Step 3: Cross multiply
   39,142x = 55,957 × 55,957
4. Step 4: Simplify right side
   39,142x = 3,131,185,849
5. Step 5: Solve for x
   x = 3,131,185,849/39,142
6. Step 6: Final answer
   x = 79,995.55