Finding the Third Proportional to 13,415.63 and 20,260.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,415.63 : 20,260.13 = 20,260.13 : x
2. Step 2: Convert to fraction form
   13,415.63/20,260.13 = 20,260.13/x
3. Step 3: Cross multiply
   13,415.63x = 20,260.13 × 20,260.13
4. Step 4: Simplify right side
   13,415.63x = 410,472,665.02
5. Step 5: Solve for x
   x = 410,472,665.02/13,415.63
6. Step 6: Final answer
   x = 30,596.61