Finding the Third Proportional to 1,446,780 and 3,142,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446,780 : 3,142,640 = 3,142,640 : x
2. Step 2: Convert to fraction form
   1,446,780/3,142,640 = 3,142,640/x
3. Step 3: Cross multiply
   1,446,780x = 3,142,640 × 3,142,640
4. Step 4: Simplify right side
   1,446,780x = 9,876,186,169,600
5. Step 5: Solve for x
   x = 9,876,186,169,600/1,446,780
6. Step 6: Final answer
   x = 6,826,322.02