Finding the Third Proportional to 108,390 and 144,980

Step by Step Solution

1. Step 1: Write the proportion equation
   108,390 : 144,980 = 144,980 : x
2. Step 2: Convert to fraction form
   108,390/144,980 = 144,980/x
3. Step 3: Cross multiply
   108,390x = 144,980 × 144,980
4. Step 4: Simplify right side
   108,390x = 21,019,200,400
5. Step 5: Solve for x
   x = 21,019,200,400/108,390
6. Step 6: Final answer
   x = 193,921.95