Finding the Third Proportional to 89,320 and 142,180

Step by Step Solution

1. Step 1: Write the proportion equation
   89,320 : 142,180 = 142,180 : x
2. Step 2: Convert to fraction form
   89,320/142,180 = 142,180/x
3. Step 3: Cross multiply
   89,320x = 142,180 × 142,180
4. Step 4: Simplify right side
   89,320x = 20,215,152,400
5. Step 5: Solve for x
   x = 20,215,152,400/89,320
6. Step 6: Final answer
   x = 226,322.80