Finding the Third Proportional to 10,080 and 21,372.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,080 : 21,372.75 = 21,372.75 : x
2. Step 2: Convert to fraction form
   10,080/21,372.75 = 21,372.75/x
3. Step 3: Cross multiply
   10,080x = 21,372.75 × 21,372.75
4. Step 4: Simplify right side
   10,080x = 456,794,442.56
5. Step 5: Solve for x
   x = 456,794,442.56/10,080
6. Step 6: Final answer
   x = 45,316.91