Finding the Third Proportional to 142,468 and 221,473.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,468 : 221,473.50 = 221,473.50 : x
2. Step 2: Convert to fraction form
   142,468/221,473.50 = 221,473.50/x
3. Step 3: Cross multiply
   142,468x = 221,473.50 × 221,473.50
4. Step 4: Simplify right side
   142,468x = 49,050,511,202.25
5. Step 5: Solve for x
   x = 49,050,511,202.25/142,468
6. Step 6: Final answer
   x = 344,291.43