Finding the Third Proportional to 99,144 and 204,957

Step by Step Solution

1. Step 1: Write the proportion equation
   99,144 : 204,957 = 204,957 : x
2. Step 2: Convert to fraction form
   99,144/204,957 = 204,957/x
3. Step 3: Cross multiply
   99,144x = 204,957 × 204,957
4. Step 4: Simplify right side
   99,144x = 42,007,371,849
5. Step 5: Solve for x
   x = 42,007,371,849/99,144
6. Step 6: Final answer
   x = 423,700.60