Finding the Third Proportional to 139,508 and 301,372

Step by Step Solution

1. Step 1: Write the proportion equation
   139,508 : 301,372 = 301,372 : x
2. Step 2: Convert to fraction form
   139,508/301,372 = 301,372/x
3. Step 3: Cross multiply
   139,508x = 301,372 × 301,372
4. Step 4: Simplify right side
   139,508x = 90,825,082,384
5. Step 5: Solve for x
   x = 90,825,082,384/139,508
6. Step 6: Final answer
   x = 651,038.52