Finding the Third Proportional to 4,120.31 and 8,532.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,120.31 : 8,532.56 = 8,532.56 : x
2. Step 2: Convert to fraction form
   4,120.31/8,532.56 = 8,532.56/x
3. Step 3: Cross multiply
   4,120.31x = 8,532.56 × 8,532.56
4. Step 4: Simplify right side
   4,120.31x = 72,804,622.82
5. Step 5: Solve for x
   x = 72,804,622.82/4,120.31
6. Step 6: Final answer
   x = 17,669.68