Finding the Third Proportional to 2,099,243 and 4,578,339

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,243 : 4,578,339 = 4,578,339 : x
2. Step 2: Convert to fraction form
   2,099,243/4,578,339 = 4,578,339/x
3. Step 3: Cross multiply
   2,099,243x = 4,578,339 × 4,578,339
4. Step 4: Simplify right side
   2,099,243x = 20,961,187,998,921
5. Step 5: Solve for x
   x = 20,961,187,998,921/2,099,243
6. Step 6: Final answer
   x = 9,985,117.49