Finding the Third Proportional to 49,990 and 108,728

Step by Step Solution

1. Step 1: Write the proportion equation
   49,990 : 108,728 = 108,728 : x
2. Step 2: Convert to fraction form
   49,990/108,728 = 108,728/x
3. Step 3: Cross multiply
   49,990x = 108,728 × 108,728
4. Step 4: Simplify right side
   49,990x = 11,821,777,984
5. Step 5: Solve for x
   x = 11,821,777,984/49,990
6. Step 6: Final answer
   x = 236,482.86