Finding the Third Proportional to 79,431 and 123,503

Step by Step Solution

1. Step 1: Write the proportion equation
   79,431 : 123,503 = 123,503 : x
2. Step 2: Convert to fraction form
   79,431/123,503 = 123,503/x
3. Step 3: Cross multiply
   79,431x = 123,503 × 123,503
4. Step 4: Simplify right side
   79,431x = 15,252,991,009
5. Step 5: Solve for x
   x = 15,252,991,009/79,431
6. Step 6: Final answer
   x = 192,028.19