Finding the Third Proportional to 690,404 and 1,476,756

Step by Step Solution

1. Step 1: Write the proportion equation
   690,404 : 1,476,756 = 1,476,756 : x
2. Step 2: Convert to fraction form
   690,404/1,476,756 = 1,476,756/x
3. Step 3: Cross multiply
   690,404x = 1,476,756 × 1,476,756
4. Step 4: Simplify right side
   690,404x = 2,180,808,283,536
5. Step 5: Solve for x
   x = 2,180,808,283,536/690,404
6. Step 6: Final answer
   x = 3,158,742.25