Finding the Third Proportional to 90,114 and 140,268

Step by Step Solution

1. Step 1: Write the proportion equation
   90,114 : 140,268 = 140,268 : x
2. Step 2: Convert to fraction form
   90,114/140,268 = 140,268/x
3. Step 3: Cross multiply
   90,114x = 140,268 × 140,268
4. Step 4: Simplify right side
   90,114x = 19,675,111,824
5. Step 5: Solve for x
   x = 19,675,111,824/90,114
6. Step 6: Final answer
   x = 218,335.79