Finding the Third Proportional to 139,032 and 300,192

Step by Step Solution

1. Step 1: Write the proportion equation
   139,032 : 300,192 = 300,192 : x
2. Step 2: Convert to fraction form
   139,032/300,192 = 300,192/x
3. Step 3: Cross multiply
   139,032x = 300,192 × 300,192
4. Step 4: Simplify right side
   139,032x = 90,115,236,864
5. Step 5: Solve for x
   x = 90,115,236,864/139,032
6. Step 6: Final answer
   x = 648,161.84