Finding the Third Proportional to 383,401 and 806,464.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,401 : 806,464.50 = 806,464.50 : x
2. Step 2: Convert to fraction form
   383,401/806,464.50 = 806,464.50/x
3. Step 3: Cross multiply
   383,401x = 806,464.50 × 806,464.50
4. Step 4: Simplify right side
   383,401x = 650,384,989,760.25
5. Step 5: Solve for x
   x = 650,384,989,760.25/383,401
6. Step 6: Final answer
   x = 1,696,357.05