Finding the Third Proportional to 91,132 and 195,640

Step by Step Solution

1. Step 1: Write the proportion equation
   91,132 : 195,640 = 195,640 : x
2. Step 2: Convert to fraction form
   91,132/195,640 = 195,640/x
3. Step 3: Cross multiply
   91,132x = 195,640 × 195,640
4. Step 4: Simplify right side
   91,132x = 38,275,009,600
5. Step 5: Solve for x
   x = 38,275,009,600/91,132
6. Step 6: Final answer
   x = 419,995.28