Finding the Third Proportional to 2,009,585 and 4,380,498

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009,585 : 4,380,498 = 4,380,498 : x
2. Step 2: Convert to fraction form
   2,009,585/4,380,498 = 4,380,498/x
3. Step 3: Cross multiply
   2,009,585x = 4,380,498 × 4,380,498
4. Step 4: Simplify right side
   2,009,585x = 19,188,762,728,004
5. Step 5: Solve for x
   x = 19,188,762,728,004/2,009,585
6. Step 6: Final answer
   x = 9,548,619.60