Finding the Third Proportional to 113,290 and 238,230

Step by Step Solution

1. Step 1: Write the proportion equation
   113,290 : 238,230 = 238,230 : x
2. Step 2: Convert to fraction form
   113,290/238,230 = 238,230/x
3. Step 3: Cross multiply
   113,290x = 238,230 × 238,230
4. Step 4: Simplify right side
   113,290x = 56,753,532,900
5. Step 5: Solve for x
   x = 56,753,532,900/113,290
6. Step 6: Final answer
   x = 500,958.01