Finding the Third Proportional to 1,251 and 1,910

Step by Step Solution

1. Step 1: Write the proportion equation
   1,251 : 1,910 = 1,910 : x
2. Step 2: Convert to fraction form
   1,251/1,910 = 1,910/x
3. Step 3: Cross multiply
   1,251x = 1,910 × 1,910
4. Step 4: Simplify right side
   1,251x = 3,648,100
5. Step 5: Solve for x
   x = 3,648,100/1,251
6. Step 6: Final answer
   x = 2,916.15