Finding the Third Proportional to 111,288 and 166,900

Step by Step Solution

1. Step 1: Write the proportion equation
   111,288 : 166,900 = 166,900 : x
2. Step 2: Convert to fraction form
   111,288/166,900 = 166,900/x
3. Step 3: Cross multiply
   111,288x = 166,900 × 166,900
4. Step 4: Simplify right side
   111,288x = 27,855,610,000
5. Step 5: Solve for x
   x = 27,855,610,000/111,288
6. Step 6: Final answer
   x = 250,302.01