Finding the Third Proportional to 139,647 and 301,434

Step by Step Solution

1. Step 1: Write the proportion equation
   139,647 : 301,434 = 301,434 : x
2. Step 2: Convert to fraction form
   139,647/301,434 = 301,434/x
3. Step 3: Cross multiply
   139,647x = 301,434 × 301,434
4. Step 4: Simplify right side
   139,647x = 90,862,456,356
5. Step 5: Solve for x
   x = 90,862,456,356/139,647
6. Step 6: Final answer
   x = 650,658.13