Finding the Third Proportional to 457,876 and 700,422

Step by Step Solution

1. Step 1: Write the proportion equation
   457,876 : 700,422 = 700,422 : x
2. Step 2: Convert to fraction form
   457,876/700,422 = 700,422/x
3. Step 3: Cross multiply
   457,876x = 700,422 × 700,422
4. Step 4: Simplify right side
   457,876x = 490,590,978,084
5. Step 5: Solve for x
   x = 490,590,978,084/457,876
6. Step 6: Final answer
   x = 1,071,449.43