Finding the Third Proportional to 28,728 and 60,768

Step by Step Solution

1. Step 1: Write the proportion equation
   28,728 : 60,768 = 60,768 : x
2. Step 2: Convert to fraction form
   28,728/60,768 = 60,768/x
3. Step 3: Cross multiply
   28,728x = 60,768 × 60,768
4. Step 4: Simplify right side
   28,728x = 3,692,749,824
5. Step 5: Solve for x
   x = 3,692,749,824/28,728
6. Step 6: Final answer
   x = 128,541.83