Finding the Third Proportional to 67,728 and 155,765.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,728 : 155,765.50 = 155,765.50 : x
2. Step 2: Convert to fraction form
   67,728/155,765.50 = 155,765.50/x
3. Step 3: Cross multiply
   67,728x = 155,765.50 × 155,765.50
4. Step 4: Simplify right side
   67,728x = 24,262,890,990.25
5. Step 5: Solve for x
   x = 24,262,890,990.25/67,728
6. Step 6: Final answer
   x = 358,240.18