Finding the Third Proportional to 383,403 and 806,468.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,403 : 806,468.50 = 806,468.50 : x
2. Step 2: Convert to fraction form
   383,403/806,468.50 = 806,468.50/x
3. Step 3: Cross multiply
   383,403x = 806,468.50 × 806,468.50
4. Step 4: Simplify right side
   383,403x = 650,391,441,492.25
5. Step 5: Solve for x
   x = 650,391,441,492.25/383,403
6. Step 6: Final answer
   x = 1,696,365.03