Finding the Third Proportional to 688,320 and 1,476,306

Step by Step Solution

1. Step 1: Write the proportion equation
   688,320 : 1,476,306 = 1,476,306 : x
2. Step 2: Convert to fraction form
   688,320/1,476,306 = 1,476,306/x
3. Step 3: Cross multiply
   688,320x = 1,476,306 × 1,476,306
4. Step 4: Simplify right side
   688,320x = 2,179,479,405,636
5. Step 5: Solve for x
   x = 2,179,479,405,636/688,320
6. Step 6: Final answer
   x = 3,166,375.24