Finding the Third Proportional to 90,560 and 195,040

Step by Step Solution

1. Step 1: Write the proportion equation
   90,560 : 195,040 = 195,040 : x
2. Step 2: Convert to fraction form
   90,560/195,040 = 195,040/x
3. Step 3: Cross multiply
   90,560x = 195,040 × 195,040
4. Step 4: Simplify right side
   90,560x = 38,040,601,600
5. Step 5: Solve for x
   x = 38,040,601,600/90,560
6. Step 6: Final answer
   x = 420,059.65