Finding the Third Proportional to 2,171,662 and 4,679,918

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,662 : 4,679,918 = 4,679,918 : x
2. Step 2: Convert to fraction form
   2,171,662/4,679,918 = 4,679,918/x
3. Step 3: Cross multiply
   2,171,662x = 4,679,918 × 4,679,918
4. Step 4: Simplify right side
   2,171,662x = 21,901,632,486,724
5. Step 5: Solve for x
   x = 21,901,632,486,724/2,171,662
6. Step 6: Final answer
   x = 10,085,193.96