Finding the Third Proportional to 90,487 and 133,099

Step by Step Solution

1. Step 1: Write the proportion equation
   90,487 : 133,099 = 133,099 : x
2. Step 2: Convert to fraction form
   90,487/133,099 = 133,099/x
3. Step 3: Cross multiply
   90,487x = 133,099 × 133,099
4. Step 4: Simplify right side
   90,487x = 17,715,343,801
5. Step 5: Solve for x
   x = 17,715,343,801/90,487
6. Step 6: Final answer
   x = 195,777.78