Finding the Third Proportional to 1,511,640 and 3,288,989

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511,640 : 3,288,989 = 3,288,989 : x
2. Step 2: Convert to fraction form
   1,511,640/3,288,989 = 3,288,989/x
3. Step 3: Cross multiply
   1,511,640x = 3,288,989 × 3,288,989
4. Step 4: Simplify right side
   1,511,640x = 10,817,448,642,121
5. Step 5: Solve for x
   x = 10,817,448,642,121/1,511,640
6. Step 6: Final answer
   x = 7,156,101.08