Finding the Third Proportional to 250,609 and 383,851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,609 : 383,851.50 = 383,851.50 : x
2. Step 2: Convert to fraction form
   250,609/383,851.50 = 383,851.50/x
3. Step 3: Cross multiply
   250,609x = 383,851.50 × 383,851.50
4. Step 4: Simplify right side
   250,609x = 147,341,974,052.25
5. Step 5: Solve for x
   x = 147,341,974,052.25/250,609
6. Step 6: Final answer
   x = 587,935.68