Finding the Third Proportional to 142,603.03 and 305,451

Step by Step Solution

1. Step 1: Write the proportion equation
   142,603.03 : 305,451 = 305,451 : x
2. Step 2: Convert to fraction form
   142,603.03/305,451 = 305,451/x
3. Step 3: Cross multiply
   142,603.03x = 305,451 × 305,451
4. Step 4: Simplify right side
   142,603.03x = 93,300,313,401
5. Step 5: Solve for x
   x = 93,300,313,401/142,603.03
6. Step 6: Final answer
   x = 654,265.99