Finding the Third Proportional to 1,258 and 1,786

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258 : 1,786 = 1,786 : x
2. Step 2: Convert to fraction form
   1,258/1,786 = 1,786/x
3. Step 3: Cross multiply
   1,258x = 1,786 × 1,786
4. Step 4: Simplify right side
   1,258x = 3,189,796
5. Step 5: Solve for x
   x = 3,189,796/1,258
6. Step 6: Final answer
   x = 2,535.61