Finding the Third Proportional to 1,388,043 and 3,213,027

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388,043 : 3,213,027 = 3,213,027 : x
2. Step 2: Convert to fraction form
   1,388,043/3,213,027 = 3,213,027/x
3. Step 3: Cross multiply
   1,388,043x = 3,213,027 × 3,213,027
4. Step 4: Simplify right side
   1,388,043x = 10,323,542,502,729
5. Step 5: Solve for x
   x = 10,323,542,502,729/1,388,043
6. Step 6: Final answer
   x = 7,437,480.32