Finding the Third Proportional to 11,870 and 18,316

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870 : 18,316 = 18,316 : x
2. Step 2: Convert to fraction form
   11,870/18,316 = 18,316/x
3. Step 3: Cross multiply
   11,870x = 18,316 × 18,316
4. Step 4: Simplify right side
   11,870x = 335,475,856
5. Step 5: Solve for x
   x = 335,475,856/11,870
6. Step 6: Final answer
   x = 28,262.50