Finding the Third Proportional to 12,818.25 and 28,005.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,818.25 : 28,005.75 = 28,005.75 : x
2. Step 2: Convert to fraction form
   12,818.25/28,005.75 = 28,005.75/x
3. Step 3: Cross multiply
   12,818.25x = 28,005.75 × 28,005.75
4. Step 4: Simplify right side
   12,818.25x = 784,322,033.06
5. Step 5: Solve for x
   x = 784,322,033.06/12,818.25
6. Step 6: Final answer
   x = 61,187.92