Finding the Third Proportional to 142,885.69 and 305,469.56

Step by Step Solution

1. Step 1: Write the proportion equation
   142,885.69 : 305,469.56 = 305,469.56 : x
2. Step 2: Convert to fraction form
   142,885.69/305,469.56 = 305,469.56/x
3. Step 3: Cross multiply
   142,885.69x = 305,469.56 × 305,469.56
4. Step 4: Simplify right side
   142,885.69x = 93,311,653,613.94
5. Step 5: Solve for x
   x = 93,311,653,613.94/142,885.69
6. Step 6: Final answer
   x = 653,051.09