Finding the Third Proportional to 12,721.50 and 27,893.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,721.50 : 27,893.25 = 27,893.25 : x
2. Step 2: Convert to fraction form
   12,721.50/27,893.25 = 27,893.25/x
3. Step 3: Cross multiply
   12,721.50x = 27,893.25 × 27,893.25
4. Step 4: Simplify right side
   12,721.50x = 778,033,395.56
5. Step 5: Solve for x
   x = 778,033,395.56/12,721.50
6. Step 6: Final answer
   x = 61,158.94