Finding the Third Proportional to 488.53 and 1,075.78

Step by Step Solution

1. Step 1: Write the proportion equation
   488.53 : 1,075.78 = 1,075.78 : x
2. Step 2: Convert to fraction form
   488.53/1,075.78 = 1,075.78/x
3. Step 3: Cross multiply
   488.53x = 1,075.78 × 1,075.78
4. Step 4: Simplify right side
   488.53x = 1,157,305.30
5. Step 5: Solve for x
   x = 1,157,305.30/488.53
6. Step 6: Final answer
   x = 2,368.95