Finding the Third Proportional to 1,396,683 and 2,231,538

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396,683 : 2,231,538 = 2,231,538 : x
2. Step 2: Convert to fraction form
   1,396,683/2,231,538 = 2,231,538/x
3. Step 3: Cross multiply
   1,396,683x = 2,231,538 × 2,231,538
4. Step 4: Simplify right side
   1,396,683x = 4,979,761,845,444
5. Step 5: Solve for x
   x = 4,979,761,845,444/1,396,683
6. Step 6: Final answer
   x = 3,565,420.25