Finding the Third Proportional to 5,470,890 and 8,581,906

Step by Step Solution

1. Step 1: Write the proportion equation
   5,470,890 : 8,581,906 = 8,581,906 : x
2. Step 2: Convert to fraction form
   5,470,890/8,581,906 = 8,581,906/x
3. Step 3: Cross multiply
   5,470,890x = 8,581,906 × 8,581,906
4. Step 4: Simplify right side
   5,470,890x = 73,649,110,592,836
5. Step 5: Solve for x
   x = 73,649,110,592,836/5,470,890
6. Step 6: Final answer
   x = 13,461,998.06