Finding the Third Proportional to 142,604 and 303,560

Step by Step Solution

1. Step 1: Write the proportion equation
   142,604 : 303,560 = 303,560 : x
2. Step 2: Convert to fraction form
   142,604/303,560 = 303,560/x
3. Step 3: Cross multiply
   142,604x = 303,560 × 303,560
4. Step 4: Simplify right side
   142,604x = 92,148,673,600
5. Step 5: Solve for x
   x = 92,148,673,600/142,604
6. Step 6: Final answer
   x = 646,185.76