Finding the Third Proportional to 139,048 and 302,928

Step by Step Solution

1. Step 1: Write the proportion equation
   139,048 : 302,928 = 302,928 : x
2. Step 2: Convert to fraction form
   139,048/302,928 = 302,928/x
3. Step 3: Cross multiply
   139,048x = 302,928 × 302,928
4. Step 4: Simplify right side
   139,048x = 91,765,373,184
5. Step 5: Solve for x
   x = 91,765,373,184/139,048
6. Step 6: Final answer
   x = 659,954.64