Finding the Third Proportional to 12,721.50 and 27,560.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,721.50 : 27,560.63 = 27,560.63 : x
2. Step 2: Convert to fraction form
   12,721.50/27,560.63 = 27,560.63/x
3. Step 3: Cross multiply
   12,721.50x = 27,560.63 × 27,560.63
4. Step 4: Simplify right side
   12,721.50x = 759,588,050.39
5. Step 5: Solve for x
   x = 759,588,050.39/12,721.50
6. Step 6: Final answer
   x = 59,709.00