Finding the Third Proportional to 90,458 and 133,072

Step by Step Solution

1. Step 1: Write the proportion equation
   90,458 : 133,072 = 133,072 : x
2. Step 2: Convert to fraction form
   90,458/133,072 = 133,072/x
3. Step 3: Cross multiply
   90,458x = 133,072 × 133,072
4. Step 4: Simplify right side
   90,458x = 17,708,157,184
5. Step 5: Solve for x
   x = 17,708,157,184/90,458
6. Step 6: Final answer
   x = 195,761.10