Finding the Third Proportional to 13,036.57 and 16,710.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,036.57 : 16,710.05 = 16,710.05 : x
2. Step 2: Convert to fraction form
   13,036.57/16,710.05 = 16,710.05/x
3. Step 3: Cross multiply
   13,036.57x = 16,710.05 × 16,710.05
4. Step 4: Simplify right side
   13,036.57x = 279,225,666.56
5. Step 5: Solve for x
   x = 279,225,666.56/13,036.57
6. Step 6: Final answer
   x = 21,418.64