Finding the Third Proportional to 4,311,858 and 9,388,692

Step by Step Solution

1. Step 1: Write the proportion equation
   4,311,858 : 9,388,692 = 9,388,692 : x
2. Step 2: Convert to fraction form
   4,311,858/9,388,692 = 9,388,692/x
3. Step 3: Cross multiply
   4,311,858x = 9,388,692 × 9,388,692
4. Step 4: Simplify right side
   4,311,858x = 88,147,537,470,864
5. Step 5: Solve for x
   x = 88,147,537,470,864/4,311,858
6. Step 6: Final answer
   x = 20,443,052.04