Finding the Third Proportional to 1,631,434 and 3,578,036

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631,434 : 3,578,036 = 3,578,036 : x
2. Step 2: Convert to fraction form
   1,631,434/3,578,036 = 3,578,036/x
3. Step 3: Cross multiply
   1,631,434x = 3,578,036 × 3,578,036
4. Step 4: Simplify right side
   1,631,434x = 12,802,341,617,296
5. Step 5: Solve for x
   x = 12,802,341,617,296/1,631,434
6. Step 6: Final answer
   x = 7,847,293.62