Finding the Third Proportional to 3,009,878 and 4,662,419

Step by Step Solution

1. Step 1: Write the proportion equation
   3,009,878 : 4,662,419 = 4,662,419 : x
2. Step 2: Convert to fraction form
   3,009,878/4,662,419 = 4,662,419/x
3. Step 3: Cross multiply
   3,009,878x = 4,662,419 × 4,662,419
4. Step 4: Simplify right side
   3,009,878x = 21,738,150,931,561
5. Step 5: Solve for x
   x = 21,738,150,931,561/3,009,878
6. Step 6: Final answer
   x = 7,222,269.78