Finding the Third Proportional to 690,408 and 1,476,764

Step by Step Solution

1. Step 1: Write the proportion equation
   690,408 : 1,476,764 = 1,476,764 : x
2. Step 2: Convert to fraction form
   690,408/1,476,764 = 1,476,764/x
3. Step 3: Cross multiply
   690,408x = 1,476,764 × 1,476,764
4. Step 4: Simplify right side
   690,408x = 2,180,831,911,696
5. Step 5: Solve for x
   x = 2,180,831,911,696/690,408
6. Step 6: Final answer
   x = 3,158,758.17