Finding the Third Proportional to 284,958 and 617,351.63

Step by Step Solution

1. Step 1: Write the proportion equation
   284,958 : 617,351.63 = 617,351.63 : x
2. Step 2: Convert to fraction form
   284,958/617,351.63 = 617,351.63/x
3. Step 3: Cross multiply
   284,958x = 617,351.63 × 617,351.63
4. Step 4: Simplify right side
   284,958x = 381,123,028,890.14
5. Step 5: Solve for x
   x = 381,123,028,890.14/284,958
6. Step 6: Final answer
   x = 1,337,470.89