Finding the Third Proportional to 42,957 and 61,965

Step by Step Solution

1. Step 1: Write the proportion equation
   42,957 : 61,965 = 61,965 : x
2. Step 2: Convert to fraction form
   42,957/61,965 = 61,965/x
3. Step 3: Cross multiply
   42,957x = 61,965 × 61,965
4. Step 4: Simplify right side
   42,957x = 3,839,661,225
5. Step 5: Solve for x
   x = 3,839,661,225/42,957
6. Step 6: Final answer
   x = 89,383.83