Finding the Third Proportional to 109,186 and 238,740

Step by Step Solution

1. Step 1: Write the proportion equation
   109,186 : 238,740 = 238,740 : x
2. Step 2: Convert to fraction form
   109,186/238,740 = 238,740/x
3. Step 3: Cross multiply
   109,186x = 238,740 × 238,740
4. Step 4: Simplify right side
   109,186x = 56,996,787,600
5. Step 5: Solve for x
   x = 56,996,787,600/109,186
6. Step 6: Final answer
   x = 522,015.53