Finding the Third Proportional to 1,243.95 and 1,763.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243.95 : 1,763.17 = 1,763.17 : x
2. Step 2: Convert to fraction form
   1,243.95/1,763.17 = 1,763.17/x
3. Step 3: Cross multiply
   1,243.95x = 1,763.17 × 1,763.17
4. Step 4: Simplify right side
   1,243.95x = 3,108,781.95
5. Step 5: Solve for x
   x = 3,108,781.95/1,243.95
6. Step 6: Final answer
   x = 2,499.12