Finding the Third Proportional to 90,256 and 134,864

Step by Step Solution

1. Step 1: Write the proportion equation
   90,256 : 134,864 = 134,864 : x
2. Step 2: Convert to fraction form
   90,256/134,864 = 134,864/x
3. Step 3: Cross multiply
   90,256x = 134,864 × 134,864
4. Step 4: Simplify right side
   90,256x = 18,188,298,496
5. Step 5: Solve for x
   x = 18,188,298,496/90,256
6. Step 6: Final answer
   x = 201,519.00