Finding the Third Proportional to 268,734 and 388,474.50

Step by Step Solution

1. Step 1: Write the proportion equation
   268,734 : 388,474.50 = 388,474.50 : x
2. Step 2: Convert to fraction form
   268,734/388,474.50 = 388,474.50/x
3. Step 3: Cross multiply
   268,734x = 388,474.50 × 388,474.50
4. Step 4: Simplify right side
   268,734x = 150,912,437,150.25
5. Step 5: Solve for x
   x = 150,912,437,150.25/268,734
6. Step 6: Final answer
   x = 561,568.08