Finding the Third Proportional to 1,824,940 and 3,970,960

Step by Step Solution

1. Step 1: Write the proportion equation
   1,824,940 : 3,970,960 = 3,970,960 : x
2. Step 2: Convert to fraction form
   1,824,940/3,970,960 = 3,970,960/x
3. Step 3: Cross multiply
   1,824,940x = 3,970,960 × 3,970,960
4. Step 4: Simplify right side
   1,824,940x = 15,768,523,321,600
5. Step 5: Solve for x
   x = 15,768,523,321,600/1,824,940
6. Step 6: Final answer
   x = 8,640,570.83