Finding the Third Proportional to 139,759 and 301,649

Step by Step Solution

1. Step 1: Write the proportion equation
   139,759 : 301,649 = 301,649 : x
2. Step 2: Convert to fraction form
   139,759/301,649 = 301,649/x
3. Step 3: Cross multiply
   139,759x = 301,649 × 301,649
4. Step 4: Simplify right side
   139,759x = 90,992,119,201
5. Step 5: Solve for x
   x = 90,992,119,201/139,759
6. Step 6: Final answer
   x = 651,064.47