Finding the Third Proportional to 2,190,489 and 3,267,507

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190,489 : 3,267,507 = 3,267,507 : x
2. Step 2: Convert to fraction form
   2,190,489/3,267,507 = 3,267,507/x
3. Step 3: Cross multiply
   2,190,489x = 3,267,507 × 3,267,507
4. Step 4: Simplify right side
   2,190,489x = 10,676,601,995,049
5. Step 5: Solve for x
   x = 10,676,601,995,049/2,190,489
6. Step 6: Final answer
   x = 4,874,072.41