Finding the Third Proportional to 90,084 and 140,229

Step by Step Solution

1. Step 1: Write the proportion equation
   90,084 : 140,229 = 140,229 : x
2. Step 2: Convert to fraction form
   90,084/140,229 = 140,229/x
3. Step 3: Cross multiply
   90,084x = 140,229 × 140,229
4. Step 4: Simplify right side
   90,084x = 19,664,172,441
5. Step 5: Solve for x
   x = 19,664,172,441/90,084
6. Step 6: Final answer
   x = 218,287.07