Finding the Third Proportional to 1,208.67 and 1,820.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.67 : 1,820.60 = 1,820.60 : x
2. Step 2: Convert to fraction form
   1,208.67/1,820.60 = 1,820.60/x
3. Step 3: Cross multiply
   1,208.67x = 1,820.60 × 1,820.60
4. Step 4: Simplify right side
   1,208.67x = 3,314,590.05
5. Step 5: Solve for x
   x = 3,314,590.05/1,208.67
6. Step 6: Final answer
   x = 2,742.34