Finding the Third Proportional to 3,617,800 and 7,865,456

Step by Step Solution

1. Step 1: Write the proportion equation
   3,617,800 : 7,865,456 = 7,865,456 : x
2. Step 2: Convert to fraction form
   3,617,800/7,865,456 = 7,865,456/x
3. Step 3: Cross multiply
   3,617,800x = 7,865,456 × 7,865,456
4. Step 4: Simplify right side
   3,617,800x = 61,865,398,087,936
5. Step 5: Solve for x
   x = 61,865,398,087,936/3,617,800
6. Step 6: Final answer
   x = 17,100,281.41