Finding the Third Proportional to 1,581,911 and 3,388,009

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581,911 : 3,388,009 = 3,388,009 : x
2. Step 2: Convert to fraction form
   1,581,911/3,388,009 = 3,388,009/x
3. Step 3: Cross multiply
   1,581,911x = 3,388,009 × 3,388,009
4. Step 4: Simplify right side
   1,581,911x = 11,478,604,984,081
5. Step 5: Solve for x
   x = 11,478,604,984,081/1,581,911
6. Step 6: Final answer
   x = 7,256,163.58