Finding the Third Proportional to 155,958.75 and 222,856.31

Step by Step Solution

1. Step 1: Write the proportion equation
   155,958.75 : 222,856.31 = 222,856.31 : x
2. Step 2: Convert to fraction form
   155,958.75/222,856.31 = 222,856.31/x
3. Step 3: Cross multiply
   155,958.75x = 222,856.31 × 222,856.31
4. Step 4: Simplify right side
   155,958.75x = 49,664,936,021.10
5. Step 5: Solve for x
   x = 49,664,936,021.10/155,958.75
6. Step 6: Final answer
   x = 318,449.18