Finding the Third Proportional to 4,080,665 and 8,936,986

Step by Step Solution

1. Step 1: Write the proportion equation
   4,080,665 : 8,936,986 = 8,936,986 : x
2. Step 2: Convert to fraction form
   4,080,665/8,936,986 = 8,936,986/x
3. Step 3: Cross multiply
   4,080,665x = 8,936,986 × 8,936,986
4. Step 4: Simplify right side
   4,080,665x = 79,869,718,764,196
5. Step 5: Solve for x
   x = 79,869,718,764,196/4,080,665
6. Step 6: Final answer
   x = 19,572,721.30