Finding the Third Proportional to 11,870 and 18,498

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870 : 18,498 = 18,498 : x
2. Step 2: Convert to fraction form
   11,870/18,498 = 18,498/x
3. Step 3: Cross multiply
   11,870x = 18,498 × 18,498
4. Step 4: Simplify right side
   11,870x = 342,176,004
5. Step 5: Solve for x
   x = 342,176,004/11,870
6. Step 6: Final answer
   x = 28,826.96