Finding the Third Proportional to 3,645,957 and 7,857,144

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,957 : 7,857,144 = 7,857,144 : x
2. Step 2: Convert to fraction form
   3,645,957/7,857,144 = 7,857,144/x
3. Step 3: Cross multiply
   3,645,957x = 7,857,144 × 7,857,144
4. Step 4: Simplify right side
   3,645,957x = 61,734,711,836,736
5. Step 5: Solve for x
   x = 61,734,711,836,736/3,645,957
6. Step 6: Final answer
   x = 16,932,375.19