Finding the Third Proportional to 2,299,111 and 5,419,643

Step by Step Solution

1. Step 1: Write the proportion equation
   2,299,111 : 5,419,643 = 5,419,643 : x
2. Step 2: Convert to fraction form
   2,299,111/5,419,643 = 5,419,643/x
3. Step 3: Cross multiply
   2,299,111x = 5,419,643 × 5,419,643
4. Step 4: Simplify right side
   2,299,111x = 29,372,530,247,449
5. Step 5: Solve for x
   x = 29,372,530,247,449/2,299,111
6. Step 6: Final answer
   x = 12,775,603.37