Finding the Third Proportional to 90,728 and 141,060

Step by Step Solution

1. Step 1: Write the proportion equation
   90,728 : 141,060 = 141,060 : x
2. Step 2: Convert to fraction form
   90,728/141,060 = 141,060/x
3. Step 3: Cross multiply
   90,728x = 141,060 × 141,060
4. Step 4: Simplify right side
   90,728x = 19,897,923,600
5. Step 5: Solve for x
   x = 19,897,923,600/90,728
6. Step 6: Final answer
   x = 219,314.03