Finding the Third Proportional to 4,578,848 and 9,042,454

Step by Step Solution

1. Step 1: Write the proportion equation
   4,578,848 : 9,042,454 = 9,042,454 : x
2. Step 2: Convert to fraction form
   4,578,848/9,042,454 = 9,042,454/x
3. Step 3: Cross multiply
   4,578,848x = 9,042,454 × 9,042,454
4. Step 4: Simplify right side
   4,578,848x = 81,765,974,342,116
5. Step 5: Solve for x
   x = 81,765,974,342,116/4,578,848
6. Step 6: Final answer
   x = 17,857,324.45