Finding the Third Proportional to 8,978,436 and 19,217,448

Step by Step Solution

1. Step 1: Write the proportion equation
   8,978,436 : 19,217,448 = 19,217,448 : x
2. Step 2: Convert to fraction form
   8,978,436/19,217,448 = 19,217,448/x
3. Step 3: Cross multiply
   8,978,436x = 19,217,448 × 19,217,448
4. Step 4: Simplify right side
   8,978,436x = 369,310,307,632,704
5. Step 5: Solve for x
   x = 369,310,307,632,704/8,978,436
6. Step 6: Final answer
   x = 41,133,033.37