Finding the Third Proportional to 13,360.78 and 20,687.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,360.78 : 20,687.06 = 20,687.06 : x
2. Step 2: Convert to fraction form
   13,360.78/20,687.06 = 20,687.06/x
3. Step 3: Cross multiply
   13,360.78x = 20,687.06 × 20,687.06
4. Step 4: Simplify right side
   13,360.78x = 427,954,554.88
5. Step 5: Solve for x
   x = 427,954,554.88/13,360.78
6. Step 6: Final answer
   x = 32,030.65