Finding the Third Proportional to 9,780 and 16,290

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780 : 16,290 = 16,290 : x
2. Step 2: Convert to fraction form
   9,780/16,290 = 16,290/x
3. Step 3: Cross multiply
   9,780x = 16,290 × 16,290
4. Step 4: Simplify right side
   9,780x = 265,364,100
5. Step 5: Solve for x
   x = 265,364,100/9,780
6. Step 6: Final answer
   x = 27,133.34