Finding the Third Proportional to 159,858 and 238,690

Step by Step Solution

1. Step 1: Write the proportion equation
   159,858 : 238,690 = 238,690 : x
2. Step 2: Convert to fraction form
   159,858/238,690 = 238,690/x
3. Step 3: Cross multiply
   159,858x = 238,690 × 238,690
4. Step 4: Simplify right side
   159,858x = 56,972,916,100
5. Step 5: Solve for x
   x = 56,972,916,100/159,858
6. Step 6: Final answer
   x = 356,397.03