Finding the Third Proportional to 1,357,446 and 2,680,628

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357,446 : 2,680,628 = 2,680,628 : x
2. Step 2: Convert to fraction form
   1,357,446/2,680,628 = 2,680,628/x
3. Step 3: Cross multiply
   1,357,446x = 2,680,628 × 2,680,628
4. Step 4: Simplify right side
   1,357,446x = 7,185,766,474,384
5. Step 5: Solve for x
   x = 7,185,766,474,384/1,357,446
6. Step 6: Final answer
   x = 5,293,592.88