Finding the Third Proportional to 621,956 and 1,306,578

Step by Step Solution

1. Step 1: Write the proportion equation
   621,956 : 1,306,578 = 1,306,578 : x
2. Step 2: Convert to fraction form
   621,956/1,306,578 = 1,306,578/x
3. Step 3: Cross multiply
   621,956x = 1,306,578 × 1,306,578
4. Step 4: Simplify right side
   621,956x = 1,707,146,070,084
5. Step 5: Solve for x
   x = 1,707,146,070,084/621,956
6. Step 6: Final answer
   x = 2,744,802.00