Finding the Third Proportional to 10,890 and 23,580

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890 : 23,580 = 23,580 : x
2. Step 2: Convert to fraction form
   10,890/23,580 = 23,580/x
3. Step 3: Cross multiply
   10,890x = 23,580 × 23,580
4. Step 4: Simplify right side
   10,890x = 556,016,400
5. Step 5: Solve for x
   x = 556,016,400/10,890
6. Step 6: Final answer
   x = 51,057.52