Finding the Third Proportional to 67,136 and 144,576

Step by Step Solution

1. Step 1: Write the proportion equation
   67,136 : 144,576 = 144,576 : x
2. Step 2: Convert to fraction form
   67,136/144,576 = 144,576/x
3. Step 3: Cross multiply
   67,136x = 144,576 × 144,576
4. Step 4: Simplify right side
   67,136x = 20,902,219,776
5. Step 5: Solve for x
   x = 20,902,219,776/67,136
6. Step 6: Final answer
   x = 311,341.45