Finding the Third Proportional to 1,407,204 and 3,318,580

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407,204 : 3,318,580 = 3,318,580 : x
2. Step 2: Convert to fraction form
   1,407,204/3,318,580 = 3,318,580/x
3. Step 3: Cross multiply
   1,407,204x = 3,318,580 × 3,318,580
4. Step 4: Simplify right side
   1,407,204x = 11,012,973,216,400
5. Step 5: Solve for x
   x = 11,012,973,216,400/1,407,204
6. Step 6: Final answer
   x = 7,826,138.37