Finding the Third Proportional to 5,256,792 and 7,678,494

Step by Step Solution

1. Step 1: Write the proportion equation
   5,256,792 : 7,678,494 = 7,678,494 : x
2. Step 2: Convert to fraction form
   5,256,792/7,678,494 = 7,678,494/x
3. Step 3: Cross multiply
   5,256,792x = 7,678,494 × 7,678,494
4. Step 4: Simplify right side
   5,256,792x = 58,959,270,108,036
5. Step 5: Solve for x
   x = 58,959,270,108,036/5,256,792
6. Step 6: Final answer
   x = 11,215,827.09