Finding the Third Proportional to 1,511,626 and 3,318,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511,626 : 3,318,128 = 3,318,128 : x
2. Step 2: Convert to fraction form
   1,511,626/3,318,128 = 3,318,128/x
3. Step 3: Cross multiply
   1,511,626x = 3,318,128 × 3,318,128
4. Step 4: Simplify right side
   1,511,626x = 11,009,973,424,384
5. Step 5: Solve for x
   x = 11,009,973,424,384/1,511,626
6. Step 6: Final answer
   x = 7,283,530.07