Finding the Third Proportional to 5,178,843 and 7,840,233

Step by Step Solution

1. Step 1: Write the proportion equation
   5,178,843 : 7,840,233 = 7,840,233 : x
2. Step 2: Convert to fraction form
   5,178,843/7,840,233 = 7,840,233/x
3. Step 3: Cross multiply
   5,178,843x = 7,840,233 × 7,840,233
4. Step 4: Simplify right side
   5,178,843x = 61,469,253,494,289
5. Step 5: Solve for x
   x = 61,469,253,494,289/5,178,843
6. Step 6: Final answer
   x = 11,869,302.37