Finding the Third Proportional to 688,435 and 1,491,242

Step by Step Solution

1. Step 1: Write the proportion equation
   688,435 : 1,491,242 = 1,491,242 : x
2. Step 2: Convert to fraction form
   688,435/1,491,242 = 1,491,242/x
3. Step 3: Cross multiply
   688,435x = 1,491,242 × 1,491,242
4. Step 4: Simplify right side
   688,435x = 2,223,802,702,564
5. Step 5: Solve for x
   x = 2,223,802,702,564/688,435
6. Step 6: Final answer
   x = 3,230,229.00