Finding the Third Proportional to 144,290 and 308,182

Step by Step Solution

1. Step 1: Write the proportion equation
   144,290 : 308,182 = 308,182 : x
2. Step 2: Convert to fraction form
   144,290/308,182 = 308,182/x
3. Step 3: Cross multiply
   144,290x = 308,182 × 308,182
4. Step 4: Simplify right side
   144,290x = 94,976,145,124
5. Step 5: Solve for x
   x = 94,976,145,124/144,290
6. Step 6: Final answer
   x = 658,230.96