Finding the Third Proportional to 4,003,660 and 8,291,230

Step by Step Solution

1. Step 1: Write the proportion equation
   4,003,660 : 8,291,230 = 8,291,230 : x
2. Step 2: Convert to fraction form
   4,003,660/8,291,230 = 8,291,230/x
3. Step 3: Cross multiply
   4,003,660x = 8,291,230 × 8,291,230
4. Step 4: Simplify right side
   4,003,660x = 68,744,494,912,900
5. Step 5: Solve for x
   x = 68,744,494,912,900/4,003,660
6. Step 6: Final answer
   x = 17,170,412.80