Finding the Third Proportional to 142,484 and 221,504

Step by Step Solution

1. Step 1: Write the proportion equation
   142,484 : 221,504 = 221,504 : x
2. Step 2: Convert to fraction form
   142,484/221,504 = 221,504/x
3. Step 3: Cross multiply
   142,484x = 221,504 × 221,504
4. Step 4: Simplify right side
   142,484x = 49,064,022,016
5. Step 5: Solve for x
   x = 49,064,022,016/142,484
6. Step 6: Final answer
   x = 344,347.59