Finding the Third Proportional to 120,136 and 173,048

Step by Step Solution

1. Step 1: Write the proportion equation
   120,136 : 173,048 = 173,048 : x
2. Step 2: Convert to fraction form
   120,136/173,048 = 173,048/x
3. Step 3: Cross multiply
   120,136x = 173,048 × 173,048
4. Step 4: Simplify right side
   120,136x = 29,945,610,304
5. Step 5: Solve for x
   x = 29,945,610,304/120,136
6. Step 6: Final answer
   x = 249,264.25