Finding the Third Proportional to 2,807,122 and 4,263,218

Step by Step Solution

1. Step 1: Write the proportion equation
   2,807,122 : 4,263,218 = 4,263,218 : x
2. Step 2: Convert to fraction form
   2,807,122/4,263,218 = 4,263,218/x
3. Step 3: Cross multiply
   2,807,122x = 4,263,218 × 4,263,218
4. Step 4: Simplify right side
   2,807,122x = 18,175,027,715,524
5. Step 5: Solve for x
   x = 18,175,027,715,524/2,807,122
6. Step 6: Final answer
   x = 6,474,612.69