Finding the Third Proportional to 576,726 and 1,258,428

Step by Step Solution

1. Step 1: Write the proportion equation
   576,726 : 1,258,428 = 1,258,428 : x
2. Step 2: Convert to fraction form
   576,726/1,258,428 = 1,258,428/x
3. Step 3: Cross multiply
   576,726x = 1,258,428 × 1,258,428
4. Step 4: Simplify right side
   576,726x = 1,583,641,031,184
5. Step 5: Solve for x
   x = 1,583,641,031,184/576,726
6. Step 6: Final answer
   x = 2,745,915.79