Finding the Third Proportional to 787,456 and 1,686,441

Step by Step Solution

1. Step 1: Write the proportion equation
   787,456 : 1,686,441 = 1,686,441 : x
2. Step 2: Convert to fraction form
   787,456/1,686,441 = 1,686,441/x
3. Step 3: Cross multiply
   787,456x = 1,686,441 × 1,686,441
4. Step 4: Simplify right side
   787,456x = 2,844,083,246,481
5. Step 5: Solve for x
   x = 2,844,083,246,481/787,456
6. Step 6: Final answer
   x = 3,611,736.08