Finding the Third Proportional to 1,429,040 and 2,211,744

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429,040 : 2,211,744 = 2,211,744 : x
2. Step 2: Convert to fraction form
   1,429,040/2,211,744 = 2,211,744/x
3. Step 3: Cross multiply
   1,429,040x = 2,211,744 × 2,211,744
4. Step 4: Simplify right side
   1,429,040x = 4,891,811,521,536
5. Step 5: Solve for x
   x = 4,891,811,521,536/1,429,040
6. Step 6: Final answer
   x = 3,423,145.27