Finding the Third Proportional to 139,622 and 301,648

Step by Step Solution

1. Step 1: Write the proportion equation
   139,622 : 301,648 = 301,648 : x
2. Step 2: Convert to fraction form
   139,622/301,648 = 301,648/x
3. Step 3: Cross multiply
   139,622x = 301,648 × 301,648
4. Step 4: Simplify right side
   139,622x = 90,991,515,904
5. Step 5: Solve for x
   x = 90,991,515,904/139,622
6. Step 6: Final answer
   x = 651,698.99