Finding the Third Proportional to 4,065,804 and 5,420,328

Step by Step Solution

1. Step 1: Write the proportion equation
   4,065,804 : 5,420,328 = 5,420,328 : x
2. Step 2: Convert to fraction form
   4,065,804/5,420,328 = 5,420,328/x
3. Step 3: Cross multiply
   4,065,804x = 5,420,328 × 5,420,328
4. Step 4: Simplify right side
   4,065,804x = 29,379,955,627,584
5. Step 5: Solve for x
   x = 29,379,955,627,584/4,065,804
6. Step 6: Final answer
   x = 7,226,112.14