Finding the Third Proportional to 12,872.25 and 28,205.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,872.25 : 28,205.25 = 28,205.25 : x
2. Step 2: Convert to fraction form
   12,872.25/28,205.25 = 28,205.25/x
3. Step 3: Cross multiply
   12,872.25x = 28,205.25 × 28,205.25
4. Step 4: Simplify right side
   12,872.25x = 795,536,127.56
5. Step 5: Solve for x
   x = 795,536,127.56/12,872.25
6. Step 6: Final answer
   x = 61,802.41