Finding the Third Proportional to 143,067.75 and 305,697

Step by Step Solution

1. Step 1: Write the proportion equation
   143,067.75 : 305,697 = 305,697 : x
2. Step 2: Convert to fraction form
   143,067.75/305,697 = 305,697/x
3. Step 3: Cross multiply
   143,067.75x = 305,697 × 305,697
4. Step 4: Simplify right side
   143,067.75x = 93,450,655,809
5. Step 5: Solve for x
   x = 93,450,655,809/143,067.75
6. Step 6: Final answer
   x = 653,191.62