Finding the Third Proportional to 70,680 and 154,728

Step by Step Solution

1. Step 1: Write the proportion equation
   70,680 : 154,728 = 154,728 : x
2. Step 2: Convert to fraction form
   70,680/154,728 = 154,728/x
3. Step 3: Cross multiply
   70,680x = 154,728 × 154,728
4. Step 4: Simplify right side
   70,680x = 23,940,753,984
5. Step 5: Solve for x
   x = 23,940,753,984/70,680
6. Step 6: Final answer
   x = 338,720.34