Finding the Third Proportional to 1,277.06 and 1,479.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,277.06 : 1,479.56 = 1,479.56 : x
2. Step 2: Convert to fraction form
   1,277.06/1,479.56 = 1,479.56/x
3. Step 3: Cross multiply
   1,277.06x = 1,479.56 × 1,479.56
4. Step 4: Simplify right side
   1,277.06x = 2,189,105.19
5. Step 5: Solve for x
   x = 2,189,105.19/1,277.06
6. Step 6: Final answer
   x = 1,714.17