Finding the Third Proportional to 268,812 and 397,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   268,812 : 397,048.50 = 397,048.50 : x
2. Step 2: Convert to fraction form
   268,812/397,048.50 = 397,048.50/x
3. Step 3: Cross multiply
   268,812x = 397,048.50 × 397,048.50
4. Step 4: Simplify right side
   268,812x = 157,647,511,352.25
5. Step 5: Solve for x
   x = 157,647,511,352.25/268,812
6. Step 6: Final answer
   x = 586,460.10