Finding the Third Proportional to 1,304,623 and 1,990,678

Step by Step Solution

1. Step 1: Write the proportion equation
   1,304,623 : 1,990,678 = 1,990,678 : x
2. Step 2: Convert to fraction form
   1,304,623/1,990,678 = 1,990,678/x
3. Step 3: Cross multiply
   1,304,623x = 1,990,678 × 1,990,678
4. Step 4: Simplify right side
   1,304,623x = 3,962,798,899,684
5. Step 5: Solve for x
   x = 3,962,798,899,684/1,304,623
6. Step 6: Final answer
   x = 3,037,505.01