Finding the Third Proportional to 1,251,649 and 1,700,259

Step by Step Solution

1. Step 1: Write the proportion equation
   1,251,649 : 1,700,259 = 1,700,259 : x
2. Step 2: Convert to fraction form
   1,251,649/1,700,259 = 1,700,259/x
3. Step 3: Cross multiply
   1,251,649x = 1,700,259 × 1,700,259
4. Step 4: Simplify right side
   1,251,649x = 2,890,880,667,081
5. Step 5: Solve for x
   x = 2,890,880,667,081/1,251,649
6. Step 6: Final answer
   x = 2,309,657.63