Finding the Third Proportional to 142,465.50 and 221,469.25

Step by Step Solution

1. Step 1: Write the proportion equation
   142,465.50 : 221,469.25 = 221,469.25 : x
2. Step 2: Convert to fraction form
   142,465.50/221,469.25 = 221,469.25/x
3. Step 3: Cross multiply
   142,465.50x = 221,469.25 × 221,469.25
4. Step 4: Simplify right side
   142,465.50x = 49,048,628,695.56
5. Step 5: Solve for x
   x = 49,048,628,695.56/142,465.50
6. Step 6: Final answer
   x = 344,284.26