Finding the Third Proportional to 111,128.63 and 158,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,128.63 : 158,800.50 = 158,800.50 : x
2. Step 2: Convert to fraction form
   111,128.63/158,800.50 = 158,800.50/x
3. Step 3: Cross multiply
   111,128.63x = 158,800.50 × 158,800.50
4. Step 4: Simplify right side
   111,128.63x = 25,217,598,800.25
5. Step 5: Solve for x
   x = 25,217,598,800.25/111,128.63
6. Step 6: Final answer
   x = 226,922.62