Finding the Third Proportional to 45,361 and 99,578

Step by Step Solution

1. Step 1: Write the proportion equation
   45,361 : 99,578 = 99,578 : x
2. Step 2: Convert to fraction form
   45,361/99,578 = 99,578/x
3. Step 3: Cross multiply
   45,361x = 99,578 × 99,578
4. Step 4: Simplify right side
   45,361x = 9,915,778,084
5. Step 5: Solve for x
   x = 9,915,778,084/45,361
6. Step 6: Final answer
   x = 218,596.99