Finding the Third Proportional to 1,445,620 and 3,214,368

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,620 : 3,214,368 = 3,214,368 : x
2. Step 2: Convert to fraction form
   1,445,620/3,214,368 = 3,214,368/x
3. Step 3: Cross multiply
   1,445,620x = 3,214,368 × 3,214,368
4. Step 4: Simplify right side
   1,445,620x = 10,332,161,639,424
5. Step 5: Solve for x
   x = 10,332,161,639,424/1,445,620
6. Step 6: Final answer
   x = 7,147,218.25