Finding the Third Proportional to 3,479,766 and 7,665,900

Step by Step Solution

1. Step 1: Write the proportion equation
   3,479,766 : 7,665,900 = 7,665,900 : x
2. Step 2: Convert to fraction form
   3,479,766/7,665,900 = 7,665,900/x
3. Step 3: Cross multiply
   3,479,766x = 7,665,900 × 7,665,900
4. Step 4: Simplify right side
   3,479,766x = 58,766,022,810,000
5. Step 5: Solve for x
   x = 58,766,022,810,000/3,479,766
6. Step 6: Final answer
   x = 16,887,923.73