Finding the Third Proportional to 515.72 and 1,075.31

Step by Step Solution

1. Step 1: Write the proportion equation
   515.72 : 1,075.31 = 1,075.31 : x
2. Step 2: Convert to fraction form
   515.72/1,075.31 = 1,075.31/x
3. Step 3: Cross multiply
   515.72x = 1,075.31 × 1,075.31
4. Step 4: Simplify right side
   515.72x = 1,156,296.97
5. Step 5: Solve for x
   x = 1,156,296.97/515.72
6. Step 6: Final answer
   x = 2,242.11