Finding the Third Proportional to 16,470 and 18,846

Step by Step Solution

1. Step 1: Write the proportion equation
   16,470 : 18,846 = 18,846 : x
2. Step 2: Convert to fraction form
   16,470/18,846 = 18,846/x
3. Step 3: Cross multiply
   16,470x = 18,846 × 18,846
4. Step 4: Simplify right side
   16,470x = 355,171,716
5. Step 5: Solve for x
   x = 355,171,716/16,470
6. Step 6: Final answer
   x = 21,564.77