Finding the Third Proportional to 11,720.81 and 25,282.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,720.81 : 25,282.69 = 25,282.69 : x
2. Step 2: Convert to fraction form
   11,720.81/25,282.69 = 25,282.69/x
3. Step 3: Cross multiply
   11,720.81x = 25,282.69 × 25,282.69
4. Step 4: Simplify right side
   11,720.81x = 639,214,287.22
5. Step 5: Solve for x
   x = 639,214,287.22/11,720.81
6. Step 6: Final answer
   x = 54,536.69