Finding the Third Proportional to 39,728 and 58,504

Step by Step Solution

1. Step 1: Write the proportion equation
   39,728 : 58,504 = 58,504 : x
2. Step 2: Convert to fraction form
   39,728/58,504 = 58,504/x
3. Step 3: Cross multiply
   39,728x = 58,504 × 58,504
4. Step 4: Simplify right side
   39,728x = 3,422,718,016
5. Step 5: Solve for x
   x = 3,422,718,016/39,728
6. Step 6: Final answer
   x = 86,153.80