Finding the Third Proportional to 155,963.50 and 222,863

Step by Step Solution

1. Step 1: Write the proportion equation
   155,963.50 : 222,863 = 222,863 : x
2. Step 2: Convert to fraction form
   155,963.50/222,863 = 222,863/x
3. Step 3: Cross multiply
   155,963.50x = 222,863 × 222,863
4. Step 4: Simplify right side
   155,963.50x = 49,667,916,769
5. Step 5: Solve for x
   x = 49,667,916,769/155,963.50
6. Step 6: Final answer
   x = 318,458.59