Finding the Third Proportional to 1,418,668 and 1,990,674

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418,668 : 1,990,674 = 1,990,674 : x
2. Step 2: Convert to fraction form
   1,418,668/1,990,674 = 1,990,674/x
3. Step 3: Cross multiply
   1,418,668x = 1,990,674 × 1,990,674
4. Step 4: Simplify right side
   1,418,668x = 3,962,782,974,276
5. Step 5: Solve for x
   x = 3,962,782,974,276/1,418,668
6. Step 6: Final answer
   x = 2,793,312.44