Finding the Third Proportional to 1,515,480 and 3,217,768

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,480 : 3,217,768 = 3,217,768 : x
2. Step 2: Convert to fraction form
   1,515,480/3,217,768 = 3,217,768/x
3. Step 3: Cross multiply
   1,515,480x = 3,217,768 × 3,217,768
4. Step 4: Simplify right side
   1,515,480x = 10,354,030,901,824
5. Step 5: Solve for x
   x = 10,354,030,901,824/1,515,480
6. Step 6: Final answer
   x = 6,832,179.18