Finding the Third Proportional to 688,436 and 1,491,244

Step by Step Solution

1. Step 1: Write the proportion equation
   688,436 : 1,491,244 = 1,491,244 : x
2. Step 2: Convert to fraction form
   688,436/1,491,244 = 1,491,244/x
3. Step 3: Cross multiply
   688,436x = 1,491,244 × 1,491,244
4. Step 4: Simplify right side
   688,436x = 2,223,808,667,536
5. Step 5: Solve for x
   x = 2,223,808,667,536/688,436
6. Step 6: Final answer
   x = 3,230,232.97