Finding the Third Proportional to 8,505.56 and 12,461.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,505.56 : 12,461.34 = 12,461.34 : x
2. Step 2: Convert to fraction form
   8,505.56/12,461.34 = 12,461.34/x
3. Step 3: Cross multiply
   8,505.56x = 12,461.34 × 12,461.34
4. Step 4: Simplify right side
   8,505.56x = 155,285,088.06
5. Step 5: Solve for x
   x = 155,285,088.06/8,505.56
6. Step 6: Final answer
   x = 18,256.89