Finding the Third Proportional to 111,826.50 and 166,221

Step by Step Solution

1. Step 1: Write the proportion equation
   111,826.50 : 166,221 = 166,221 : x
2. Step 2: Convert to fraction form
   111,826.50/166,221 = 166,221/x
3. Step 3: Cross multiply
   111,826.50x = 166,221 × 166,221
4. Step 4: Simplify right side
   111,826.50x = 27,629,420,841
5. Step 5: Solve for x
   x = 27,629,420,841/111,826.50
6. Step 6: Final answer
   x = 247,074.00