Finding the Third Proportional to 1,355.06 and 2,817.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.06 : 2,817.38 = 2,817.38 : x
2. Step 2: Convert to fraction form
   1,355.06/2,817.38 = 2,817.38/x
3. Step 3: Cross multiply
   1,355.06x = 2,817.38 × 2,817.38
4. Step 4: Simplify right side
   1,355.06x = 7,937,601.89
5. Step 5: Solve for x
   x = 7,937,601.89/1,355.06
6. Step 6: Final answer
   x = 5,857.74