Finding the Third Proportional to 49,608 and 76,728

Step by Step Solution

1. Step 1: Write the proportion equation
   49,608 : 76,728 = 76,728 : x
2. Step 2: Convert to fraction form
   49,608/76,728 = 76,728/x
3. Step 3: Cross multiply
   49,608x = 76,728 × 76,728
4. Step 4: Simplify right side
   49,608x = 5,887,185,984
5. Step 5: Solve for x
   x = 5,887,185,984/49,608
6. Step 6: Final answer
   x = 118,674.12