Finding the Third Proportional to 105,018 and 161,412

Step by Step Solution

1. Step 1: Write the proportion equation
   105,018 : 161,412 = 161,412 : x
2. Step 2: Convert to fraction form
   105,018/161,412 = 161,412/x
3. Step 3: Cross multiply
   105,018x = 161,412 × 161,412
4. Step 4: Simplify right side
   105,018x = 26,053,833,744
5. Step 5: Solve for x
   x = 26,053,833,744/105,018
6. Step 6: Final answer
   x = 248,089.22