Finding the Third Proportional to 12,664.69 and 27,686.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,664.69 : 27,686.81 = 27,686.81 : x
2. Step 2: Convert to fraction form
   12,664.69/27,686.81 = 27,686.81/x
3. Step 3: Cross multiply
   12,664.69x = 27,686.81 × 27,686.81
4. Step 4: Simplify right side
   12,664.69x = 766,559,586.41
5. Step 5: Solve for x
   x = 766,559,586.41/12,664.69
6. Step 6: Final answer
   x = 60,527.32