Finding the Third Proportional to 139,494 and 302,604

Step by Step Solution

1. Step 1: Write the proportion equation
   139,494 : 302,604 = 302,604 : x
2. Step 2: Convert to fraction form
   139,494/302,604 = 302,604/x
3. Step 3: Cross multiply
   139,494x = 302,604 × 302,604
4. Step 4: Simplify right side
   139,494x = 91,569,180,816
5. Step 5: Solve for x
   x = 91,569,180,816/139,494
6. Step 6: Final answer
   x = 656,438.13