Finding the Third Proportional to 1,491,728 and 3,219,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491,728 : 3,219,328 = 3,219,328 : x
2. Step 2: Convert to fraction form
   1,491,728/3,219,328 = 3,219,328/x
3. Step 3: Cross multiply
   1,491,728x = 3,219,328 × 3,219,328
4. Step 4: Simplify right side
   1,491,728x = 10,364,072,771,584
5. Step 5: Solve for x
   x = 10,364,072,771,584/1,491,728
6. Step 6: Final answer
   x = 6,947,696.08