Finding the Third Proportional to 1,396,742 and 2,135,724

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396,742 : 2,135,724 = 2,135,724 : x
2. Step 2: Convert to fraction form
   1,396,742/2,135,724 = 2,135,724/x
3. Step 3: Cross multiply
   1,396,742x = 2,135,724 × 2,135,724
4. Step 4: Simplify right side
   1,396,742x = 4,561,317,004,176
5. Step 5: Solve for x
   x = 4,561,317,004,176/1,396,742
6. Step 6: Final answer
   x = 3,265,683.29