Finding the Third Proportional to 12,875.25 and 28,209.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,875.25 : 28,209.75 = 28,209.75 : x
2. Step 2: Convert to fraction form
   12,875.25/28,209.75 = 28,209.75/x
3. Step 3: Cross multiply
   12,875.25x = 28,209.75 × 28,209.75
4. Step 4: Simplify right side
   12,875.25x = 795,789,995.06
5. Step 5: Solve for x
   x = 795,789,995.06/12,875.25
6. Step 6: Final answer
   x = 61,807.73