Finding the Third Proportional to 4,065,828 and 5,420,352

Step by Step Solution

1. Step 1: Write the proportion equation
   4,065,828 : 5,420,352 = 5,420,352 : x
2. Step 2: Convert to fraction form
   4,065,828/5,420,352 = 5,420,352/x
3. Step 3: Cross multiply
   4,065,828x = 5,420,352 × 5,420,352
4. Step 4: Simplify right side
   4,065,828x = 29,380,215,803,904
5. Step 5: Solve for x
   x = 29,380,215,803,904/4,065,828
6. Step 6: Final answer
   x = 7,226,133.47