Finding the Third Proportional to 617,685 and 1,333,782

Step by Step Solution

1. Step 1: Write the proportion equation
   617,685 : 1,333,782 = 1,333,782 : x
2. Step 2: Convert to fraction form
   617,685/1,333,782 = 1,333,782/x
3. Step 3: Cross multiply
   617,685x = 1,333,782 × 1,333,782
4. Step 4: Simplify right side
   617,685x = 1,778,974,423,524
5. Step 5: Solve for x
   x = 1,778,974,423,524/617,685
6. Step 6: Final answer
   x = 2,880,067.39