Finding the Third Proportional to 90,447 and 195,960

Step by Step Solution

1. Step 1: Write the proportion equation
   90,447 : 195,960 = 195,960 : x
2. Step 2: Convert to fraction form
   90,447/195,960 = 195,960/x
3. Step 3: Cross multiply
   90,447x = 195,960 × 195,960
4. Step 4: Simplify right side
   90,447x = 38,400,321,600
5. Step 5: Solve for x
   x = 38,400,321,600/90,447
6. Step 6: Final answer
   x = 424,561.58