Finding the Third Proportional to 90,815 and 141,741

Step by Step Solution

1. Step 1: Write the proportion equation
   90,815 : 141,741 = 141,741 : x
2. Step 2: Convert to fraction form
   90,815/141,741 = 141,741/x
3. Step 3: Cross multiply
   90,815x = 141,741 × 141,741
4. Step 4: Simplify right side
   90,815x = 20,090,511,081
5. Step 5: Solve for x
   x = 20,090,511,081/90,815
6. Step 6: Final answer
   x = 221,224.59