Finding the Third Proportional to 20,147.75 and 28,322.63

Step by Step Solution

1. Step 1: Write the proportion equation
   20,147.75 : 28,322.63 = 28,322.63 : x
2. Step 2: Convert to fraction form
   20,147.75/28,322.63 = 28,322.63/x
3. Step 3: Cross multiply
   20,147.75x = 28,322.63 × 28,322.63
4. Step 4: Simplify right side
   20,147.75x = 802,171,086.89
5. Step 5: Solve for x
   x = 802,171,086.89/20,147.75
6. Step 6: Final answer
   x = 39,814.43