Finding the Third Proportional to 250,635 and 383,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,635 : 383,890.50 = 383,890.50 : x
2. Step 2: Convert to fraction form
   250,635/383,890.50 = 383,890.50/x
3. Step 3: Cross multiply
   250,635x = 383,890.50 × 383,890.50
4. Step 4: Simplify right side
   250,635x = 147,371,915,990.25
5. Step 5: Solve for x
   x = 147,371,915,990.25/250,635
6. Step 6: Final answer
   x = 587,994.16