Finding the Third Proportional to 1,229,607 and 1,861,569

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229,607 : 1,861,569 = 1,861,569 : x
2. Step 2: Convert to fraction form
   1,229,607/1,861,569 = 1,861,569/x
3. Step 3: Cross multiply
   1,229,607x = 1,861,569 × 1,861,569
4. Step 4: Simplify right side
   1,229,607x = 3,465,439,141,761
5. Step 5: Solve for x
   x = 3,465,439,141,761/1,229,607
6. Step 6: Final answer
   x = 2,818,330.69