Finding the Third Proportional to 162,406 and 238,686

Step by Step Solution

1. Step 1: Write the proportion equation
   162,406 : 238,686 = 238,686 : x
2. Step 2: Convert to fraction form
   162,406/238,686 = 238,686/x
3. Step 3: Cross multiply
   162,406x = 238,686 × 238,686
4. Step 4: Simplify right side
   162,406x = 56,971,006,596
5. Step 5: Solve for x
   x = 56,971,006,596/162,406
6. Step 6: Final answer
   x = 350,793.73