Finding the Third Proportional to 1,400,401 and 2,113,458

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400,401 : 2,113,458 = 2,113,458 : x
2. Step 2: Convert to fraction form
   1,400,401/2,113,458 = 2,113,458/x
3. Step 3: Cross multiply
   1,400,401x = 2,113,458 × 2,113,458
4. Step 4: Simplify right side
   1,400,401x = 4,466,704,717,764
5. Step 5: Solve for x
   x = 4,466,704,717,764/1,400,401
6. Step 6: Final answer
   x = 3,189,589.78