Finding the Third Proportional to 284,025.50 and 617,874.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,025.50 : 617,874.50 = 617,874.50 : x
2. Step 2: Convert to fraction form
   284,025.50/617,874.50 = 617,874.50/x
3. Step 3: Cross multiply
   284,025.50x = 617,874.50 × 617,874.50
4. Step 4: Simplify right side
   284,025.50x = 381,768,897,750.25
5. Step 5: Solve for x
   x = 381,768,897,750.25/284,025.50
6. Step 6: Final answer
   x = 1,344,135.99