Finding the Third Proportional to 668,742 and 1,036,647

Step by Step Solution

1. Step 1: Write the proportion equation
   668,742 : 1,036,647 = 1,036,647 : x
2. Step 2: Convert to fraction form
   668,742/1,036,647 = 1,036,647/x
3. Step 3: Cross multiply
   668,742x = 1,036,647 × 1,036,647
4. Step 4: Simplify right side
   668,742x = 1,074,637,002,609
5. Step 5: Solve for x
   x = 1,074,637,002,609/668,742
6. Step 6: Final answer
   x = 1,606,953.06