Finding the Third Proportional to 4,578,846 and 9,042,450

Step by Step Solution

1. Step 1: Write the proportion equation
   4,578,846 : 9,042,450 = 9,042,450 : x
2. Step 2: Convert to fraction form
   4,578,846/9,042,450 = 9,042,450/x
3. Step 3: Cross multiply
   4,578,846x = 9,042,450 × 9,042,450
4. Step 4: Simplify right side
   4,578,846x = 81,765,902,002,500
5. Step 5: Solve for x
   x = 81,765,902,002,500/4,578,846
6. Step 6: Final answer
   x = 17,857,316.45