Finding the Third Proportional to 4,065,793 and 5,420,320

Step by Step Solution

1. Step 1: Write the proportion equation
   4,065,793 : 5,420,320 = 5,420,320 : x
2. Step 2: Convert to fraction form
   4,065,793/5,420,320 = 5,420,320/x
3. Step 3: Cross multiply
   4,065,793x = 5,420,320 × 5,420,320
4. Step 4: Simplify right side
   4,065,793x = 29,379,868,902,400
5. Step 5: Solve for x
   x = 29,379,868,902,400/4,065,793
6. Step 6: Final answer
   x = 7,226,110.36