Finding the Third Proportional to 4,222,425 and 9,108,402

Step by Step Solution

1. Step 1: Write the proportion equation
   4,222,425 : 9,108,402 = 9,108,402 : x
2. Step 2: Convert to fraction form
   4,222,425/9,108,402 = 9,108,402/x
3. Step 3: Cross multiply
   4,222,425x = 9,108,402 × 9,108,402
4. Step 4: Simplify right side
   4,222,425x = 82,962,986,993,604
5. Step 5: Solve for x
   x = 82,962,986,993,604/4,222,425
6. Step 6: Final answer
   x = 19,648,184.87