Finding the Third Proportional to 3,857,267 and 8,400,262

Step by Step Solution

1. Step 1: Write the proportion equation
   3,857,267 : 8,400,262 = 8,400,262 : x
2. Step 2: Convert to fraction form
   3,857,267/8,400,262 = 8,400,262/x
3. Step 3: Cross multiply
   3,857,267x = 8,400,262 × 8,400,262
4. Step 4: Simplify right side
   3,857,267x = 70,564,401,668,644
5. Step 5: Solve for x
   x = 70,564,401,668,644/3,857,267
6. Step 6: Final answer
   x = 18,293,885.71