Finding the Third Proportional to 4,233,267 and 9,309,318

Step by Step Solution

1. Step 1: Write the proportion equation
   4,233,267 : 9,309,318 = 9,309,318 : x
2. Step 2: Convert to fraction form
   4,233,267/9,309,318 = 9,309,318/x
3. Step 3: Cross multiply
   4,233,267x = 9,309,318 × 9,309,318
4. Step 4: Simplify right side
   4,233,267x = 86,663,401,625,124
5. Step 5: Solve for x
   x = 86,663,401,625,124/4,233,267
6. Step 6: Final answer
   x = 20,471,990.46