Finding the Third Proportional to 1,260 and 2,721.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,260 : 2,721.38 = 2,721.38 : x
2. Step 2: Convert to fraction form
   1,260/2,721.38 = 2,721.38/x
3. Step 3: Cross multiply
   1,260x = 2,721.38 × 2,721.38
4. Step 4: Simplify right side
   1,260x = 7,405,881.89
5. Step 5: Solve for x
   x = 7,405,881.89/1,260
6. Step 6: Final answer
   x = 5,877.68