Finding the Third Proportional to 4,188,860 and 9,039,337

Step by Step Solution

1. Step 1: Write the proportion equation
   4,188,860 : 9,039,337 = 9,039,337 : x
2. Step 2: Convert to fraction form
   4,188,860/9,039,337 = 9,039,337/x
3. Step 3: Cross multiply
   4,188,860x = 9,039,337 × 9,039,337
4. Step 4: Simplify right side
   4,188,860x = 81,709,613,399,569
5. Step 5: Solve for x
   x = 81,709,613,399,569/4,188,860
6. Step 6: Final answer
   x = 19,506,408.28