Finding the Third Proportional to 140,232 and 300,144

Step by Step Solution

1. Step 1: Write the proportion equation
   140,232 : 300,144 = 300,144 : x
2. Step 2: Convert to fraction form
   140,232/300,144 = 300,144/x
3. Step 3: Cross multiply
   140,232x = 300,144 × 300,144
4. Step 4: Simplify right side
   140,232x = 90,086,420,736
5. Step 5: Solve for x
   x = 90,086,420,736/140,232
6. Step 6: Final answer
   x = 642,409.87