Finding the Third Proportional to 4,245,713 and 8,885,086

Step by Step Solution

1. Step 1: Write the proportion equation
   4,245,713 : 8,885,086 = 8,885,086 : x
2. Step 2: Convert to fraction form
   4,245,713/8,885,086 = 8,885,086/x
3. Step 3: Cross multiply
   4,245,713x = 8,885,086 × 8,885,086
4. Step 4: Simplify right side
   4,245,713x = 78,944,753,227,396
5. Step 5: Solve for x
   x = 78,944,753,227,396/4,245,713
6. Step 6: Final answer
   x = 18,593,991.92