Finding the Third Proportional to 227,778 and 498,458.50

Step by Step Solution

1. Step 1: Write the proportion equation
   227,778 : 498,458.50 = 498,458.50 : x
2. Step 2: Convert to fraction form
   227,778/498,458.50 = 498,458.50/x
3. Step 3: Cross multiply
   227,778x = 498,458.50 × 498,458.50
4. Step 4: Simplify right side
   227,778x = 248,460,876,222.25
5. Step 5: Solve for x
   x = 248,460,876,222.25/227,778
6. Step 6: Final answer
   x = 1,090,802.78