Finding the Third Proportional to 774,753 and 1,686,690

Step by Step Solution

1. Step 1: Write the proportion equation
   774,753 : 1,686,690 = 1,686,690 : x
2. Step 2: Convert to fraction form
   774,753/1,686,690 = 1,686,690/x
3. Step 3: Cross multiply
   774,753x = 1,686,690 × 1,686,690
4. Step 4: Simplify right side
   774,753x = 2,844,923,156,100
5. Step 5: Solve for x
   x = 2,844,923,156,100/774,753
6. Step 6: Final answer
   x = 3,672,038.90