Finding the Third Proportional to 1,308 and 2,821.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308 : 2,821.31 = 2,821.31 : x
2. Step 2: Convert to fraction form
   1,308/2,821.31 = 2,821.31/x
3. Step 3: Cross multiply
   1,308x = 2,821.31 × 2,821.31
4. Step 4: Simplify right side
   1,308x = 7,959,804.22
5. Step 5: Solve for x
   x = 7,959,804.22/1,308
6. Step 6: Final answer
   x = 6,085.48