Finding the Third Proportional to 688,368 and 1,476,380

Step by Step Solution

1. Step 1: Write the proportion equation
   688,368 : 1,476,380 = 1,476,380 : x
2. Step 2: Convert to fraction form
   688,368/1,476,380 = 1,476,380/x
3. Step 3: Cross multiply
   688,368x = 1,476,380 × 1,476,380
4. Step 4: Simplify right side
   688,368x = 2,179,697,904,400
5. Step 5: Solve for x
   x = 2,179,697,904,400/688,368
6. Step 6: Final answer
   x = 3,166,471.86