Finding the Third Proportional to 1,966,570 and 4,323,399

Step by Step Solution

1. Step 1: Write the proportion equation
   1,966,570 : 4,323,399 = 4,323,399 : x
2. Step 2: Convert to fraction form
   1,966,570/4,323,399 = 4,323,399/x
3. Step 3: Cross multiply
   1,966,570x = 4,323,399 × 4,323,399
4. Step 4: Simplify right side
   1,966,570x = 18,691,778,913,201
5. Step 5: Solve for x
   x = 18,691,778,913,201/1,966,570
6. Step 6: Final answer
   x = 9,504,761.55