Finding the Third Proportional to 1,631,438 and 3,578,044

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631,438 : 3,578,044 = 3,578,044 : x
2. Step 2: Convert to fraction form
   1,631,438/3,578,044 = 3,578,044/x
3. Step 3: Cross multiply
   1,631,438x = 3,578,044 × 3,578,044
4. Step 4: Simplify right side
   1,631,438x = 12,802,398,865,936
5. Step 5: Solve for x
   x = 12,802,398,865,936/1,631,438
6. Step 6: Final answer
   x = 7,847,309.47