Finding the Third Proportional to 383,436 and 806,535

Step by Step Solution

1. Step 1: Write the proportion equation
   383,436 : 806,535 = 806,535 : x
2. Step 2: Convert to fraction form
   383,436/806,535 = 806,535/x
3. Step 3: Cross multiply
   383,436x = 806,535 × 806,535
4. Step 4: Simplify right side
   383,436x = 650,498,706,225
5. Step 5: Solve for x
   x = 650,498,706,225/383,436
6. Step 6: Final answer
   x = 1,696,498.78