Finding the Third Proportional to 700,400 and 1,019,980

Step by Step Solution

1. Step 1: Write the proportion equation
   700,400 : 1,019,980 = 1,019,980 : x
2. Step 2: Convert to fraction form
   700,400/1,019,980 = 1,019,980/x
3. Step 3: Cross multiply
   700,400x = 1,019,980 × 1,019,980
4. Step 4: Simplify right side
   700,400x = 1,040,359,200,400
5. Step 5: Solve for x
   x = 1,040,359,200,400/700,400
6. Step 6: Final answer
   x = 1,485,378.64