Finding the Third Proportional to 1,396,681 and 2,231,535

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396,681 : 2,231,535 = 2,231,535 : x
2. Step 2: Convert to fraction form
   1,396,681/2,231,535 = 2,231,535/x
3. Step 3: Cross multiply
   1,396,681x = 2,231,535 × 2,231,535
4. Step 4: Simplify right side
   1,396,681x = 4,979,748,456,225
5. Step 5: Solve for x
   x = 4,979,748,456,225/1,396,681
6. Step 6: Final answer
   x = 3,565,415.77