Finding the Third Proportional to 50,540,469 and 78,192,105

Step by Step Solution

1. Step 1: Write the proportion equation
   50,540,469 : 78,192,105 = 78,192,105 : x
2. Step 2: Convert to fraction form
   50,540,469/78,192,105 = 78,192,105/x
3. Step 3: Cross multiply
   50,540,469x = 78,192,105 × 78,192,105
4. Step 4: Simplify right side
   50,540,469x = 6,114,005,284,331,025
5. Step 5: Solve for x
   x = 6,114,005,284,331,025/50,540,469
6. Step 6: Final answer
   x = 120,972,468.31