Finding the Third Proportional to 1,574,628 and 3,215,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574,628 : 3,215,688 = 3,215,688 : x
2. Step 2: Convert to fraction form
   1,574,628/3,215,688 = 3,215,688/x
3. Step 3: Cross multiply
   1,574,628x = 3,215,688 × 3,215,688
4. Step 4: Simplify right side
   1,574,628x = 10,340,649,313,344
5. Step 5: Solve for x
   x = 10,340,649,313,344/1,574,628
6. Step 6: Final answer
   x = 6,567,042.70