Finding the Third Proportional to 3,914,372 and 8,434,966

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914,372 : 8,434,966 = 8,434,966 : x
2. Step 2: Convert to fraction form
   3,914,372/8,434,966 = 8,434,966/x
3. Step 3: Cross multiply
   3,914,372x = 8,434,966 × 8,434,966
4. Step 4: Simplify right side
   3,914,372x = 71,148,651,421,156
5. Step 5: Solve for x
   x = 71,148,651,421,156/3,914,372
6. Step 6: Final answer
   x = 18,176,262.10