Finding the Third Proportional to 111,287.50 and 235,818

Step by Step Solution

1. Step 1: Write the proportion equation
   111,287.50 : 235,818 = 235,818 : x
2. Step 2: Convert to fraction form
   111,287.50/235,818 = 235,818/x
3. Step 3: Cross multiply
   111,287.50x = 235,818 × 235,818
4. Step 4: Simplify right side
   111,287.50x = 55,610,129,124
5. Step 5: Solve for x
   x = 55,610,129,124/111,287.50
6. Step 6: Final answer
   x = 499,697.89