Finding the Third Proportional to 68,670 and 144,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,670 : 144,724.50 = 144,724.50 : x
2. Step 2: Convert to fraction form
   68,670/144,724.50 = 144,724.50/x
3. Step 3: Cross multiply
   68,670x = 144,724.50 × 144,724.50
4. Step 4: Simplify right side
   68,670x = 20,945,180,900.25
5. Step 5: Solve for x
   x = 20,945,180,900.25/68,670
6. Step 6: Final answer
   x = 305,012.10