Finding the Third Proportional to 828,872 and 1,259,508

Step by Step Solution

1. Step 1: Write the proportion equation
   828,872 : 1,259,508 = 1,259,508 : x
2. Step 2: Convert to fraction form
   828,872/1,259,508 = 1,259,508/x
3. Step 3: Cross multiply
   828,872x = 1,259,508 × 1,259,508
4. Step 4: Simplify right side
   828,872x = 1,586,360,402,064
5. Step 5: Solve for x
   x = 1,586,360,402,064/828,872
6. Step 6: Final answer
   x = 1,913,878.62