Finding the Third Proportional to 139,514 and 302,208

Step by Step Solution

1. Step 1: Write the proportion equation
   139,514 : 302,208 = 302,208 : x
2. Step 2: Convert to fraction form
   139,514/302,208 = 302,208/x
3. Step 3: Cross multiply
   139,514x = 302,208 × 302,208
4. Step 4: Simplify right side
   139,514x = 91,329,675,264
5. Step 5: Solve for x
   x = 91,329,675,264/139,514
6. Step 6: Final answer
   x = 654,627.32