Finding the Third Proportional to 3,144,015 and 4,869,639

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144,015 : 4,869,639 = 4,869,639 : x
2. Step 2: Convert to fraction form
   3,144,015/4,869,639 = 4,869,639/x
3. Step 3: Cross multiply
   3,144,015x = 4,869,639 × 4,869,639
4. Step 4: Simplify right side
   3,144,015x = 23,713,383,990,321
5. Step 5: Solve for x
   x = 23,713,383,990,321/3,144,015
6. Step 6: Final answer
   x = 7,542,388.95