Finding the Third Proportional to 688,584 and 1,491,516

Step by Step Solution

1. Step 1: Write the proportion equation
   688,584 : 1,491,516 = 1,491,516 : x
2. Step 2: Convert to fraction form
   688,584/1,491,516 = 1,491,516/x
3. Step 3: Cross multiply
   688,584x = 1,491,516 × 1,491,516
4. Step 4: Simplify right side
   688,584x = 2,224,619,978,256
5. Step 5: Solve for x
   x = 2,224,619,978,256/688,584
6. Step 6: Final answer
   x = 3,230,716.92