Finding the Third Proportional to 155,401.50 and 203,172

Step by Step Solution

1. Step 1: Write the proportion equation
   155,401.50 : 203,172 = 203,172 : x
2. Step 2: Convert to fraction form
   155,401.50/203,172 = 203,172/x
3. Step 3: Cross multiply
   155,401.50x = 203,172 × 203,172
4. Step 4: Simplify right side
   155,401.50x = 41,278,861,584
5. Step 5: Solve for x
   x = 41,278,861,584/155,401.50
6. Step 6: Final answer
   x = 265,627.18