Finding the Third Proportional to 19,868.63 and 28,731.38

Step by Step Solution

1. Step 1: Write the proportion equation
   19,868.63 : 28,731.38 = 28,731.38 : x
2. Step 2: Convert to fraction form
   19,868.63/28,731.38 = 28,731.38/x
3. Step 3: Cross multiply
   19,868.63x = 28,731.38 × 28,731.38
4. Step 4: Simplify right side
   19,868.63x = 825,491,909.39
5. Step 5: Solve for x
   x = 825,491,909.39/19,868.63
6. Step 6: Final answer
   x = 41,547.51