Finding the Third Proportional to 486.75 and 1,068.56

Step by Step Solution

1. Step 1: Write the proportion equation
   486.75 : 1,068.56 = 1,068.56 : x
2. Step 2: Convert to fraction form
   486.75/1,068.56 = 1,068.56/x
3. Step 3: Cross multiply
   486.75x = 1,068.56 × 1,068.56
4. Step 4: Simplify right side
   486.75x = 1,141,825.82
5. Step 5: Solve for x
   x = 1,141,825.82/486.75
6. Step 6: Final answer
   x = 2,345.82