Finding the Third Proportional to 1,172.25 and 1,812.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172.25 : 1,812.38 = 1,812.38 : x
2. Step 2: Convert to fraction form
   1,172.25/1,812.38 = 1,812.38/x
3. Step 3: Cross multiply
   1,172.25x = 1,812.38 × 1,812.38
4. Step 4: Simplify right side
   1,172.25x = 3,284,703.14
5. Step 5: Solve for x
   x = 3,284,703.14/1,172.25
6. Step 6: Final answer
   x = 2,802.05