Finding the Third Proportional to 2,663,878 and 4,236,969

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663,878 : 4,236,969 = 4,236,969 : x
2. Step 2: Convert to fraction form
   2,663,878/4,236,969 = 4,236,969/x
3. Step 3: Cross multiply
   2,663,878x = 4,236,969 × 4,236,969
4. Step 4: Simplify right side
   2,663,878x = 17,951,906,306,961
5. Step 5: Solve for x
   x = 17,951,906,306,961/2,663,878
6. Step 6: Final answer
   x = 6,739,012.19