Finding the Third Proportional to 12,811.50 and 27,561.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,811.50 : 27,561.75 = 27,561.75 : x
2. Step 2: Convert to fraction form
   12,811.50/27,561.75 = 27,561.75/x
3. Step 3: Cross multiply
   12,811.50x = 27,561.75 × 27,561.75
4. Step 4: Simplify right side
   12,811.50x = 759,650,063.06
5. Step 5: Solve for x
   x = 759,650,063.06/12,811.50
6. Step 6: Final answer
   x = 59,294.39