Finding the Third Proportional to 10,209.75 and 21,452.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,209.75 : 21,452.25 = 21,452.25 : x
2. Step 2: Convert to fraction form
   10,209.75/21,452.25 = 21,452.25/x
3. Step 3: Cross multiply
   10,209.75x = 21,452.25 × 21,452.25
4. Step 4: Simplify right side
   10,209.75x = 460,199,030.06
5. Step 5: Solve for x
   x = 460,199,030.06/10,209.75
6. Step 6: Final answer
   x = 45,074.47