Finding the Third Proportional to 5,463 and 10,890

Step by Step Solution

1. Step 1: Write the proportion equation
   5,463 : 10,890 = 10,890 : x
2. Step 2: Convert to fraction form
   5,463/10,890 = 10,890/x
3. Step 3: Cross multiply
   5,463x = 10,890 × 10,890
4. Step 4: Simplify right side
   5,463x = 118,592,100
5. Step 5: Solve for x
   x = 118,592,100/5,463
6. Step 6: Final answer
   x = 21,708.24