Finding the Third Proportional to 69,222.73 and 143,249.45

Step by Step Solution

1. Step 1: Write the proportion equation
   69,222.73 : 143,249.45 = 143,249.45 : x
2. Step 2: Convert to fraction form
   69,222.73/143,249.45 = 143,249.45/x
3. Step 3: Cross multiply
   69,222.73x = 143,249.45 × 143,249.45
4. Step 4: Simplify right side
   69,222.73x = 20,520,404,701.48
5. Step 5: Solve for x
   x = 20,520,404,701.48/69,222.73
6. Step 6: Final answer
   x = 296,440.28