Finding the Third Proportional to 139,628 and 301,396

Step by Step Solution

1. Step 1: Write the proportion equation
   139,628 : 301,396 = 301,396 : x
2. Step 2: Convert to fraction form
   139,628/301,396 = 301,396/x
3. Step 3: Cross multiply
   139,628x = 301,396 × 301,396
4. Step 4: Simplify right side
   139,628x = 90,839,548,816
5. Step 5: Solve for x
   x = 90,839,548,816/139,628
6. Step 6: Final answer
   x = 650,582.61