Finding the Third Proportional to 111,683 and 238,948

Step by Step Solution

1. Step 1: Write the proportion equation
   111,683 : 238,948 = 238,948 : x
2. Step 2: Convert to fraction form
   111,683/238,948 = 238,948/x
3. Step 3: Cross multiply
   111,683x = 238,948 × 238,948
4. Step 4: Simplify right side
   111,683x = 57,096,146,704
5. Step 5: Solve for x
   x = 57,096,146,704/111,683
6. Step 6: Final answer
   x = 511,234.00