Finding the Third Proportional to 139,492 and 302,164

Step by Step Solution

1. Step 1: Write the proportion equation
   139,492 : 302,164 = 302,164 : x
2. Step 2: Convert to fraction form
   139,492/302,164 = 302,164/x
3. Step 3: Cross multiply
   139,492x = 302,164 × 302,164
4. Step 4: Simplify right side
   139,492x = 91,303,082,896
5. Step 5: Solve for x
   x = 91,303,082,896/139,492
6. Step 6: Final answer
   x = 654,539.92