Finding the Third Proportional to 142,269 and 302,061

Step by Step Solution

1. Step 1: Write the proportion equation
   142,269 : 302,061 = 302,061 : x
2. Step 2: Convert to fraction form
   142,269/302,061 = 302,061/x
3. Step 3: Cross multiply
   142,269x = 302,061 × 302,061
4. Step 4: Simplify right side
   142,269x = 91,240,847,721
5. Step 5: Solve for x
   x = 91,240,847,721/142,269
6. Step 6: Final answer
   x = 641,326.27