Finding the Third Proportional to 1,919,775 and 4,147,428

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,775 : 4,147,428 = 4,147,428 : x
2. Step 2: Convert to fraction form
   1,919,775/4,147,428 = 4,147,428/x
3. Step 3: Cross multiply
   1,919,775x = 4,147,428 × 4,147,428
4. Step 4: Simplify right side
   1,919,775x = 17,201,159,015,184
5. Step 5: Solve for x
   x = 17,201,159,015,184/1,919,775
6. Step 6: Final answer
   x = 8,959,986.99