Finding the Third Proportional to 1,511,656 and 3,318,188

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511,656 : 3,318,188 = 3,318,188 : x
2. Step 2: Convert to fraction form
   1,511,656/3,318,188 = 3,318,188/x
3. Step 3: Cross multiply
   1,511,656x = 3,318,188 × 3,318,188
4. Step 4: Simplify right side
   1,511,656x = 11,010,371,603,344
5. Step 5: Solve for x
   x = 11,010,371,603,344/1,511,656
6. Step 6: Final answer
   x = 7,283,648.93