Finding the Third Proportional to 67,449 and 144,739.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,449 : 144,739.50 = 144,739.50 : x
2. Step 2: Convert to fraction form
   67,449/144,739.50 = 144,739.50/x
3. Step 3: Cross multiply
   67,449x = 144,739.50 × 144,739.50
4. Step 4: Simplify right side
   67,449x = 20,949,522,860.25
5. Step 5: Solve for x
   x = 20,949,522,860.25/67,449
6. Step 6: Final answer
   x = 310,597.98