Finding the Third Proportional to 90,066 and 195,988

Step by Step Solution

1. Step 1: Write the proportion equation
   90,066 : 195,988 = 195,988 : x
2. Step 2: Convert to fraction form
   90,066/195,988 = 195,988/x
3. Step 3: Cross multiply
   90,066x = 195,988 × 195,988
4. Step 4: Simplify right side
   90,066x = 38,411,296,144
5. Step 5: Solve for x
   x = 38,411,296,144/90,066
6. Step 6: Final answer
   x = 426,479.43