Finding the Third Proportional to 20,490 and 27,810

Step by Step Solution

1. Step 1: Write the proportion equation
   20,490 : 27,810 = 27,810 : x
2. Step 2: Convert to fraction form
   20,490/27,810 = 27,810/x
3. Step 3: Cross multiply
   20,490x = 27,810 × 27,810
4. Step 4: Simplify right side
   20,490x = 773,396,100
5. Step 5: Solve for x
   x = 773,396,100/20,490
6. Step 6: Final answer
   x = 37,745.05