Finding the Third Proportional to 3,914,228 and 5,512,121

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914,228 : 5,512,121 = 5,512,121 : x
2. Step 2: Convert to fraction form
   3,914,228/5,512,121 = 5,512,121/x
3. Step 3: Cross multiply
   3,914,228x = 5,512,121 × 5,512,121
4. Step 4: Simplify right side
   3,914,228x = 30,383,477,918,641
5. Step 5: Solve for x
   x = 30,383,477,918,641/3,914,228
6. Step 6: Final answer
   x = 7,762,316.84