Finding the Third Proportional to 144,078 and 192,789

Step by Step Solution

1. Step 1: Write the proportion equation
   144,078 : 192,789 = 192,789 : x
2. Step 2: Convert to fraction form
   144,078/192,789 = 192,789/x
3. Step 3: Cross multiply
   144,078x = 192,789 × 192,789
4. Step 4: Simplify right side
   144,078x = 37,167,598,521
5. Step 5: Solve for x
   x = 37,167,598,521/144,078
6. Step 6: Final answer
   x = 257,968.59