Finding the Third Proportional to 643,110 and 1,396,932

Step by Step Solution

1. Step 1: Write the proportion equation
   643,110 : 1,396,932 = 1,396,932 : x
2. Step 2: Convert to fraction form
   643,110/1,396,932 = 1,396,932/x
3. Step 3: Cross multiply
   643,110x = 1,396,932 × 1,396,932
4. Step 4: Simplify right side
   643,110x = 1,951,419,012,624
5. Step 5: Solve for x
   x = 1,951,419,012,624/643,110
6. Step 6: Final answer
   x = 3,034,347.18