Finding the Third Proportional to 776,124 and 1,665,648

Step by Step Solution

1. Step 1: Write the proportion equation
   776,124 : 1,665,648 = 1,665,648 : x
2. Step 2: Convert to fraction form
   776,124/1,665,648 = 1,665,648/x
3. Step 3: Cross multiply
   776,124x = 1,665,648 × 1,665,648
4. Step 4: Simplify right side
   776,124x = 2,774,383,259,904
5. Step 5: Solve for x
   x = 2,774,383,259,904/776,124
6. Step 6: Final answer
   x = 3,574,664.95