Finding the Third Proportional to 111,280 and 166,856

Step by Step Solution

1. Step 1: Write the proportion equation
   111,280 : 166,856 = 166,856 : x
2. Step 2: Convert to fraction form
   111,280/166,856 = 166,856/x
3. Step 3: Cross multiply
   111,280x = 166,856 × 166,856
4. Step 4: Simplify right side
   111,280x = 27,840,924,736
5. Step 5: Solve for x
   x = 27,840,924,736/111,280
6. Step 6: Final answer
   x = 250,188.04