Finding the Third Proportional to 1,289,124 and 2,807,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289,124 : 2,807,640 = 2,807,640 : x
2. Step 2: Convert to fraction form
   1,289,124/2,807,640 = 2,807,640/x
3. Step 3: Cross multiply
   1,289,124x = 2,807,640 × 2,807,640
4. Step 4: Simplify right side
   1,289,124x = 7,882,842,369,600
5. Step 5: Solve for x
   x = 7,882,842,369,600/1,289,124
6. Step 6: Final answer
   x = 6,114,882.95