Finding the Third Proportional to 2,009,970 and 4,381,299

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009,970 : 4,381,299 = 4,381,299 : x
2. Step 2: Convert to fraction form
   2,009,970/4,381,299 = 4,381,299/x
3. Step 3: Cross multiply
   2,009,970x = 4,381,299 × 4,381,299
4. Step 4: Simplify right side
   2,009,970x = 19,195,780,927,401
5. Step 5: Solve for x
   x = 19,195,780,927,401/2,009,970
6. Step 6: Final answer
   x = 9,550,282.31