Finding the Third Proportional to 111,166.50 and 166,447.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,166.50 : 166,447.50 = 166,447.50 : x
2. Step 2: Convert to fraction form
   111,166.50/166,447.50 = 166,447.50/x
3. Step 3: Cross multiply
   111,166.50x = 166,447.50 × 166,447.50
4. Step 4: Simplify right side
   111,166.50x = 27,704,770,256.25
5. Step 5: Solve for x
   x = 27,704,770,256.25/111,166.50
6. Step 6: Final answer
   x = 249,218.70