Finding the Third Proportional to 3,308,019 and 7,122,890

Step by Step Solution

1. Step 1: Write the proportion equation
   3,308,019 : 7,122,890 = 7,122,890 : x
2. Step 2: Convert to fraction form
   3,308,019/7,122,890 = 7,122,890/x
3. Step 3: Cross multiply
   3,308,019x = 7,122,890 × 7,122,890
4. Step 4: Simplify right side
   3,308,019x = 50,735,561,952,100
5. Step 5: Solve for x
   x = 50,735,561,952,100/3,308,019
6. Step 6: Final answer
   x = 15,337,143.45