Finding the Third Proportional to 79,428 and 123,498

Step by Step Solution

1. Step 1: Write the proportion equation
   79,428 : 123,498 = 123,498 : x
2. Step 2: Convert to fraction form
   79,428/123,498 = 123,498/x
3. Step 3: Cross multiply
   79,428x = 123,498 × 123,498
4. Step 4: Simplify right side
   79,428x = 15,251,756,004
5. Step 5: Solve for x
   x = 15,251,756,004/79,428
6. Step 6: Final answer
   x = 192,019.89