Finding the Third Proportional to 18,166 and 42,454

Step by Step Solution

1. Step 1: Write the proportion equation
   18,166 : 42,454 = 42,454 : x
2. Step 2: Convert to fraction form
   18,166/42,454 = 42,454/x
3. Step 3: Cross multiply
   18,166x = 42,454 × 42,454
4. Step 4: Simplify right side
   18,166x = 1,802,342,116
5. Step 5: Solve for x
   x = 1,802,342,116/18,166
6. Step 6: Final answer
   x = 99,215.13