Finding the Third Proportional to 111,298 and 166,915

Step by Step Solution

1. Step 1: Write the proportion equation
   111,298 : 166,915 = 166,915 : x
2. Step 2: Convert to fraction form
   111,298/166,915 = 166,915/x
3. Step 3: Cross multiply
   111,298x = 166,915 × 166,915
4. Step 4: Simplify right side
   111,298x = 27,860,617,225
5. Step 5: Solve for x
   x = 27,860,617,225/111,298
6. Step 6: Final answer
   x = 250,324.51