Finding the Third Proportional to 2,100,616 and 4,581,456

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,616 : 4,581,456 = 4,581,456 : x
2. Step 2: Convert to fraction form
   2,100,616/4,581,456 = 4,581,456/x
3. Step 3: Cross multiply
   2,100,616x = 4,581,456 × 4,581,456
4. Step 4: Simplify right side
   2,100,616x = 20,989,739,079,936
5. Step 5: Solve for x
   x = 20,989,739,079,936/2,100,616
6. Step 6: Final answer
   x = 9,992,182.81