Finding the Third Proportional to 161,922 and 245,142

Step by Step Solution

1. Step 1: Write the proportion equation
   161,922 : 245,142 = 245,142 : x
2. Step 2: Convert to fraction form
   161,922/245,142 = 245,142/x
3. Step 3: Cross multiply
   161,922x = 245,142 × 245,142
4. Step 4: Simplify right side
   161,922x = 60,094,600,164
5. Step 5: Solve for x
   x = 60,094,600,164/161,922
6. Step 6: Final answer
   x = 371,133.02