Finding the Third Proportional to 73,728 and 99,180

Step by Step Solution

1. Step 1: Write the proportion equation
   73,728 : 99,180 = 99,180 : x
2. Step 2: Convert to fraction form
   73,728/99,180 = 99,180/x
3. Step 3: Cross multiply
   73,728x = 99,180 × 99,180
4. Step 4: Simplify right side
   73,728x = 9,836,672,400
5. Step 5: Solve for x
   x = 9,836,672,400/73,728
6. Step 6: Final answer
   x = 133,418.41