Finding the Third Proportional to 72,728 and 154,244

Step by Step Solution

1. Step 1: Write the proportion equation
   72,728 : 154,244 = 154,244 : x
2. Step 2: Convert to fraction form
   72,728/154,244 = 154,244/x
3. Step 3: Cross multiply
   72,728x = 154,244 × 154,244
4. Step 4: Simplify right side
   72,728x = 23,791,211,536
5. Step 5: Solve for x
   x = 23,791,211,536/72,728
6. Step 6: Final answer
   x = 327,125.89