Finding the Third Proportional to 113,565 and 238,900

Step by Step Solution

1. Step 1: Write the proportion equation
   113,565 : 238,900 = 238,900 : x
2. Step 2: Convert to fraction form
   113,565/238,900 = 238,900/x
3. Step 3: Cross multiply
   113,565x = 238,900 × 238,900
4. Step 4: Simplify right side
   113,565x = 57,073,210,000
5. Step 5: Solve for x
   x = 57,073,210,000/113,565
6. Step 6: Final answer
   x = 502,559.86