Finding the Third Proportional to 21,254.91 and 28,567.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,254.91 : 28,567.69 = 28,567.69 : x
2. Step 2: Convert to fraction form
   21,254.91/28,567.69 = 28,567.69/x
3. Step 3: Cross multiply
   21,254.91x = 28,567.69 × 28,567.69
4. Step 4: Simplify right side
   21,254.91x = 816,112,769.10
5. Step 5: Solve for x
   x = 816,112,769.10/21,254.91
6. Step 6: Final answer
   x = 38,396.44