Finding the Third Proportional to 640,996 and 1,367,802

Step by Step Solution

1. Step 1: Write the proportion equation
   640,996 : 1,367,802 = 1,367,802 : x
2. Step 2: Convert to fraction form
   640,996/1,367,802 = 1,367,802/x
3. Step 3: Cross multiply
   640,996x = 1,367,802 × 1,367,802
4. Step 4: Simplify right side
   640,996x = 1,870,882,311,204
5. Step 5: Solve for x
   x = 1,870,882,311,204/640,996
6. Step 6: Final answer
   x = 2,918,711.37