Finding the Third Proportional to 1,511,628 and 3,318,132

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511,628 : 3,318,132 = 3,318,132 : x
2. Step 2: Convert to fraction form
   1,511,628/3,318,132 = 3,318,132/x
3. Step 3: Cross multiply
   1,511,628x = 3,318,132 × 3,318,132
4. Step 4: Simplify right side
   1,511,628x = 11,009,999,969,424
5. Step 5: Solve for x
   x = 11,009,999,969,424/1,511,628
6. Step 6: Final answer
   x = 7,283,537.99