Finding the Third Proportional to 144,835.50 and 212,068

Step by Step Solution

1. Step 1: Write the proportion equation
   144,835.50 : 212,068 = 212,068 : x
2. Step 2: Convert to fraction form
   144,835.50/212,068 = 212,068/x
3. Step 3: Cross multiply
   144,835.50x = 212,068 × 212,068
4. Step 4: Simplify right side
   144,835.50x = 44,972,836,624
5. Step 5: Solve for x
   x = 44,972,836,624/144,835.50
6. Step 6: Final answer
   x = 310,509.76