Finding the Third Proportional to 4,010,459 and 8,660,116

Step by Step Solution

1. Step 1: Write the proportion equation
   4,010,459 : 8,660,116 = 8,660,116 : x
2. Step 2: Convert to fraction form
   4,010,459/8,660,116 = 8,660,116/x
3. Step 3: Cross multiply
   4,010,459x = 8,660,116 × 8,660,116
4. Step 4: Simplify right side
   4,010,459x = 74,997,609,133,456
5. Step 5: Solve for x
   x = 74,997,609,133,456/4,010,459
6. Step 6: Final answer
   x = 18,700,505.14