Finding the Third Proportional to 4,204,385 and 9,222,658

Step by Step Solution

1. Step 1: Write the proportion equation
   4,204,385 : 9,222,658 = 9,222,658 : x
2. Step 2: Convert to fraction form
   4,204,385/9,222,658 = 9,222,658/x
3. Step 3: Cross multiply
   4,204,385x = 9,222,658 × 9,222,658
4. Step 4: Simplify right side
   4,204,385x = 85,057,420,584,964
5. Step 5: Solve for x
   x = 85,057,420,584,964/4,204,385
6. Step 6: Final answer
   x = 20,230,645.05