Finding the Third Proportional to 253,436 and 550,680

Step by Step Solution

1. Step 1: Write the proportion equation
   253,436 : 550,680 = 550,680 : x
2. Step 2: Convert to fraction form
   253,436/550,680 = 550,680/x
3. Step 3: Cross multiply
   253,436x = 550,680 × 550,680
4. Step 4: Simplify right side
   253,436x = 303,248,462,400
5. Step 5: Solve for x
   x = 303,248,462,400/253,436
6. Step 6: Final answer
   x = 1,196,548.49