Finding the Third Proportional to 4,311,486 and 9,388,425

Step by Step Solution

1. Step 1: Write the proportion equation
   4,311,486 : 9,388,425 = 9,388,425 : x
2. Step 2: Convert to fraction form
   4,311,486/9,388,425 = 9,388,425/x
3. Step 3: Cross multiply
   4,311,486x = 9,388,425 × 9,388,425
4. Step 4: Simplify right side
   4,311,486x = 88,142,523,980,625
5. Step 5: Solve for x
   x = 88,142,523,980,625/4,311,486
6. Step 6: Final answer
   x = 20,443,653.07