Finding the Third Proportional to 1,396,679 and 2,231,532

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396,679 : 2,231,532 = 2,231,532 : x
2. Step 2: Convert to fraction form
   1,396,679/2,231,532 = 2,231,532/x
3. Step 3: Cross multiply
   1,396,679x = 2,231,532 × 2,231,532
4. Step 4: Simplify right side
   1,396,679x = 4,979,735,067,024
5. Step 5: Solve for x
   x = 4,979,735,067,024/1,396,679
6. Step 6: Final answer
   x = 3,565,411.28