Finding the Third Proportional to 1,243.31 and 1,862.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243.31 : 1,862.06 = 1,862.06 : x
2. Step 2: Convert to fraction form
   1,243.31/1,862.06 = 1,862.06/x
3. Step 3: Cross multiply
   1,243.31x = 1,862.06 × 1,862.06
4. Step 4: Simplify right side
   1,243.31x = 3,467,276.75
5. Step 5: Solve for x
   x = 3,467,276.75/1,243.31
6. Step 6: Final answer
   x = 2,788.74