Finding the Third Proportional to 2,115,786 and 3,223,255

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,786 : 3,223,255 = 3,223,255 : x
2. Step 2: Convert to fraction form
   2,115,786/3,223,255 = 3,223,255/x
3. Step 3: Cross multiply
   2,115,786x = 3,223,255 × 3,223,255
4. Step 4: Simplify right side
   2,115,786x = 10,389,372,795,025
5. Step 5: Solve for x
   x = 10,389,372,795,025/2,115,786
6. Step 6: Final answer
   x = 4,910,408.14