Finding the Third Proportional to 1,205,872 and 1,919,507

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,872 : 1,919,507 = 1,919,507 : x
2. Step 2: Convert to fraction form
   1,205,872/1,919,507 = 1,919,507/x
3. Step 3: Cross multiply
   1,205,872x = 1,919,507 × 1,919,507
4. Step 4: Simplify right side
   1,205,872x = 3,684,507,123,049
5. Step 5: Solve for x
   x = 3,684,507,123,049/1,205,872
6. Step 6: Final answer
   x = 3,055,471.16