Finding the Third Proportional to 142,945.50 and 305,565

Step by Step Solution

1. Step 1: Write the proportion equation
   142,945.50 : 305,565 = 305,565 : x
2. Step 2: Convert to fraction form
   142,945.50/305,565 = 305,565/x
3. Step 3: Cross multiply
   142,945.50x = 305,565 × 305,565
4. Step 4: Simplify right side
   142,945.50x = 93,369,969,225
5. Step 5: Solve for x
   x = 93,369,969,225/142,945.50
6. Step 6: Final answer
   x = 653,185.79