Finding the Third Proportional to 4,065,836 and 5,420,364

Step by Step Solution

1. Step 1: Write the proportion equation
   4,065,836 : 5,420,364 = 5,420,364 : x
2. Step 2: Convert to fraction form
   4,065,836/5,420,364 = 5,420,364/x
3. Step 3: Cross multiply
   4,065,836x = 5,420,364 × 5,420,364
4. Step 4: Simplify right side
   4,065,836x = 29,380,345,892,496
5. Step 5: Solve for x
   x = 29,380,345,892,496/4,065,836
6. Step 6: Final answer
   x = 7,226,151.25