Finding the Third Proportional to 142,816 and 301,536

Step by Step Solution

1. Step 1: Write the proportion equation
   142,816 : 301,536 = 301,536 : x
2. Step 2: Convert to fraction form
   142,816/301,536 = 301,536/x
3. Step 3: Cross multiply
   142,816x = 301,536 × 301,536
4. Step 4: Simplify right side
   142,816x = 90,923,959,296
5. Step 5: Solve for x
   x = 90,923,959,296/142,816
6. Step 6: Final answer
   x = 636,651.07