Finding the Third Proportional to 1,485,813 and 3,256,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485,813 : 3,256,440 = 3,256,440 : x
2. Step 2: Convert to fraction form
   1,485,813/3,256,440 = 3,256,440/x
3. Step 3: Cross multiply
   1,485,813x = 3,256,440 × 3,256,440
4. Step 4: Simplify right side
   1,485,813x = 10,604,401,473,600
5. Step 5: Solve for x
   x = 10,604,401,473,600/1,485,813
6. Step 6: Final answer
   x = 7,137,103.71