Finding the Third Proportional to 99,578 and 154,150

Step by Step Solution

1. Step 1: Write the proportion equation
   99,578 : 154,150 = 154,150 : x
2. Step 2: Convert to fraction form
   99,578/154,150 = 154,150/x
3. Step 3: Cross multiply
   99,578x = 154,150 × 154,150
4. Step 4: Simplify right side
   99,578x = 23,762,222,500
5. Step 5: Solve for x
   x = 23,762,222,500/99,578
6. Step 6: Final answer
   x = 238,629.24