Finding the Third Proportional to 142,923 and 322,261.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,923 : 322,261.50 = 322,261.50 : x
2. Step 2: Convert to fraction form
   142,923/322,261.50 = 322,261.50/x
3. Step 3: Cross multiply
   142,923x = 322,261.50 × 322,261.50
4. Step 4: Simplify right side
   142,923x = 103,852,474,382.25
5. Step 5: Solve for x
   x = 103,852,474,382.25/142,923
6. Step 6: Final answer
   x = 726,632.34