Finding the Third Proportional to 383,402 and 806,466.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,402 : 806,466.50 = 806,466.50 : x
2. Step 2: Convert to fraction form
   383,402/806,466.50 = 806,466.50/x
3. Step 3: Cross multiply
   383,402x = 806,466.50 × 806,466.50
4. Step 4: Simplify right side
   383,402x = 650,388,215,622.25
5. Step 5: Solve for x
   x = 650,388,215,622.25/383,402
6. Step 6: Final answer
   x = 1,696,361.04