Finding the Third Proportional to 155,962.50 and 222,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,962.50 : 222,861.50 = 222,861.50 : x
2. Step 2: Convert to fraction form
   155,962.50/222,861.50 = 222,861.50/x
3. Step 3: Cross multiply
   155,962.50x = 222,861.50 × 222,861.50
4. Step 4: Simplify right side
   155,962.50x = 49,667,248,182.25
5. Step 5: Solve for x
   x = 49,667,248,182.25/155,962.50
6. Step 6: Final answer
   x = 318,456.35