Finding the Third Proportional to 8,429.06 and 9,279.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.06 : 9,279.56 = 9,279.56 : x
2. Step 2: Convert to fraction form
   8,429.06/9,279.56 = 9,279.56/x
3. Step 3: Cross multiply
   8,429.06x = 9,279.56 × 9,279.56
4. Step 4: Simplify right side
   8,429.06x = 86,110,280.19
5. Step 5: Solve for x
   x = 86,110,280.19/8,429.06
6. Step 6: Final answer
   x = 10,215.88