Finding the Third Proportional to 8,702.44 and 10,980.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,702.44 : 10,980.56 = 10,980.56 : x
2. Step 2: Convert to fraction form
   8,702.44/10,980.56 = 10,980.56/x
3. Step 3: Cross multiply
   8,702.44x = 10,980.56 × 10,980.56
4. Step 4: Simplify right side
   8,702.44x = 120,572,752.82
5. Step 5: Solve for x
   x = 120,572,752.82/8,702.44
6. Step 6: Final answer
   x = 13,855.06