Finding the Third Proportional to 9,018 and 19,518

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018 : 19,518 = 19,518 : x
2. Step 2: Convert to fraction form
   9,018/19,518 = 19,518/x
3. Step 3: Cross multiply
   9,018x = 19,518 × 19,518
4. Step 4: Simplify right side
   9,018x = 380,952,324
5. Step 5: Solve for x
   x = 380,952,324/9,018
6. Step 6: Final answer
   x = 42,243.55