Finding the Third Proportional to 113,668 and 236,600

Step by Step Solution

1. Step 1: Write the proportion equation
   113,668 : 236,600 = 236,600 : x
2. Step 2: Convert to fraction form
   113,668/236,600 = 236,600/x
3. Step 3: Cross multiply
   113,668x = 236,600 × 236,600
4. Step 4: Simplify right side
   113,668x = 55,979,560,000
5. Step 5: Solve for x
   x = 55,979,560,000/113,668
6. Step 6: Final answer
   x = 492,483.02