Finding the Third Proportional to 3,455,796 and 7,678,604

Step by Step Solution

1. Step 1: Write the proportion equation
   3,455,796 : 7,678,604 = 7,678,604 : x
2. Step 2: Convert to fraction form
   3,455,796/7,678,604 = 7,678,604/x
3. Step 3: Cross multiply
   3,455,796x = 7,678,604 × 7,678,604
4. Step 4: Simplify right side
   3,455,796x = 58,960,959,388,816
5. Step 5: Solve for x
   x = 58,960,959,388,816/3,455,796
6. Step 6: Final answer
   x = 17,061,469.89