Finding the Third Proportional to 90,440 and 196,444

Step by Step Solution

1. Step 1: Write the proportion equation
   90,440 : 196,444 = 196,444 : x
2. Step 2: Convert to fraction form
   90,440/196,444 = 196,444/x
3. Step 3: Cross multiply
   90,440x = 196,444 × 196,444
4. Step 4: Simplify right side
   90,440x = 38,590,245,136
5. Step 5: Solve for x
   x = 38,590,245,136/90,440
6. Step 6: Final answer
   x = 426,694.44