Finding the Third Proportional to 1,372.78 and 2,355.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.78 : 2,355.33 = 2,355.33 : x
2. Step 2: Convert to fraction form
   1,372.78/2,355.33 = 2,355.33/x
3. Step 3: Cross multiply
   1,372.78x = 2,355.33 × 2,355.33
4. Step 4: Simplify right side
   1,372.78x = 5,547,570.58
5. Step 5: Solve for x
   x = 5,547,570.58/1,372.78
6. Step 6: Final answer
   x = 4,041.12