Finding the Third Proportional to 686,806.50 and 1,491,846

Step by Step Solution

1. Step 1: Write the proportion equation
   686,806.50 : 1,491,846 = 1,491,846 : x
2. Step 2: Convert to fraction form
   686,806.50/1,491,846 = 1,491,846/x
3. Step 3: Cross multiply
   686,806.50x = 1,491,846 × 1,491,846
4. Step 4: Simplify right side
   686,806.50x = 2,225,604,487,716
5. Step 5: Solve for x
   x = 2,225,604,487,716/686,806.50
6. Step 6: Final answer
   x = 3,240,511.68