Finding the Third Proportional to 1,338,822 and 2,039,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,822 : 2,039,640 = 2,039,640 : x
2. Step 2: Convert to fraction form
   1,338,822/2,039,640 = 2,039,640/x
3. Step 3: Cross multiply
   1,338,822x = 2,039,640 × 2,039,640
4. Step 4: Simplify right side
   1,338,822x = 4,160,131,329,600
5. Step 5: Solve for x
   x = 4,160,131,329,600/1,338,822
6. Step 6: Final answer
   x = 3,107,307.27