Finding the Third Proportional to 1,418,666 and 1,990,671

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418,666 : 1,990,671 = 1,990,671 : x
2. Step 2: Convert to fraction form
   1,418,666/1,990,671 = 1,990,671/x
3. Step 3: Cross multiply
   1,418,666x = 1,990,671 × 1,990,671
4. Step 4: Simplify right side
   1,418,666x = 3,962,771,030,241
5. Step 5: Solve for x
   x = 3,962,771,030,241/1,418,666
6. Step 6: Final answer
   x = 2,793,307.96