Finding the Third Proportional to 4,311,874 and 9,388,724

Step by Step Solution

1. Step 1: Write the proportion equation
   4,311,874 : 9,388,724 = 9,388,724 : x
2. Step 2: Convert to fraction form
   4,311,874/9,388,724 = 9,388,724/x
3. Step 3: Cross multiply
   4,311,874x = 9,388,724 × 9,388,724
4. Step 4: Simplify right side
   4,311,874x = 88,148,138,348,176
5. Step 5: Solve for x
   x = 88,148,138,348,176/4,311,874
6. Step 6: Final answer
   x = 20,443,115.53