Finding the Third Proportional to 49,728 and 73,620

Step by Step Solution

1. Step 1: Write the proportion equation
   49,728 : 73,620 = 73,620 : x
2. Step 2: Convert to fraction form
   49,728/73,620 = 73,620/x
3. Step 3: Cross multiply
   49,728x = 73,620 × 73,620
4. Step 4: Simplify right side
   49,728x = 5,419,904,400
5. Step 5: Solve for x
   x = 5,419,904,400/49,728
6. Step 6: Final answer
   x = 108,991.00