Finding the Third Proportional to 2,449,144 and 5,189,648

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449,144 : 5,189,648 = 5,189,648 : x
2. Step 2: Convert to fraction form
   2,449,144/5,189,648 = 5,189,648/x
3. Step 3: Cross multiply
   2,449,144x = 5,189,648 × 5,189,648
4. Step 4: Simplify right side
   2,449,144x = 26,932,446,363,904
5. Step 5: Solve for x
   x = 26,932,446,363,904/2,449,144
6. Step 6: Final answer
   x = 10,996,677.35