Finding the Third Proportional to 10,998,569 and 16,639,384

Step by Step Solution

1. Step 1: Write the proportion equation
   10,998,569 : 16,639,384 = 16,639,384 : x
2. Step 2: Convert to fraction form
   10,998,569/16,639,384 = 16,639,384/x
3. Step 3: Cross multiply
   10,998,569x = 16,639,384 × 16,639,384
4. Step 4: Simplify right side
   10,998,569x = 276,869,099,899,456
5. Step 5: Solve for x
   x = 276,869,099,899,456/10,998,569
6. Step 6: Final answer
   x = 25,173,192.98