Finding the Third Proportional to 131,285 and 144,820

Step by Step Solution

1. Step 1: Write the proportion equation
   131,285 : 144,820 = 144,820 : x
2. Step 2: Convert to fraction form
   131,285/144,820 = 144,820/x
3. Step 3: Cross multiply
   131,285x = 144,820 × 144,820
4. Step 4: Simplify right side
   131,285x = 20,972,832,400
5. Step 5: Solve for x
   x = 20,972,832,400/131,285
6. Step 6: Final answer
   x = 159,750.41