Finding the Third Proportional to 20,377.13 and 28,855.69

Step by Step Solution

1. Step 1: Write the proportion equation
   20,377.13 : 28,855.69 = 28,855.69 : x
2. Step 2: Convert to fraction form
   20,377.13/28,855.69 = 28,855.69/x
3. Step 3: Cross multiply
   20,377.13x = 28,855.69 × 28,855.69
4. Step 4: Simplify right side
   20,377.13x = 832,650,701.10
5. Step 5: Solve for x
   x = 832,650,701.10/20,377.13
6. Step 6: Final answer
   x = 40,862.03