Finding the Third Proportional to 3,457,890 and 5,555,907

Step by Step Solution

1. Step 1: Write the proportion equation
   3,457,890 : 5,555,907 = 5,555,907 : x
2. Step 2: Convert to fraction form
   3,457,890/5,555,907 = 5,555,907/x
3. Step 3: Cross multiply
   3,457,890x = 5,555,907 × 5,555,907
4. Step 4: Simplify right side
   3,457,890x = 30,868,102,592,649
5. Step 5: Solve for x
   x = 30,868,102,592,649/3,457,890
6. Step 6: Final answer
   x = 8,926,860.77