Finding the Third Proportional to 12,253.50 and 16,290

Step by Step Solution

1. Step 1: Write the proportion equation
   12,253.50 : 16,290 = 16,290 : x
2. Step 2: Convert to fraction form
   12,253.50/16,290 = 16,290/x
3. Step 3: Cross multiply
   12,253.50x = 16,290 × 16,290
4. Step 4: Simplify right side
   12,253.50x = 265,364,100
5. Step 5: Solve for x
   x = 265,364,100/12,253.50
6. Step 6: Final answer
   x = 21,656.19