Finding the Third Proportional to 619,858 and 1,334,240

Step by Step Solution

1. Step 1: Write the proportion equation
   619,858 : 1,334,240 = 1,334,240 : x
2. Step 2: Convert to fraction form
   619,858/1,334,240 = 1,334,240/x
3. Step 3: Cross multiply
   619,858x = 1,334,240 × 1,334,240
4. Step 4: Simplify right side
   619,858x = 1,780,196,377,600
5. Step 5: Solve for x
   x = 1,780,196,377,600/619,858
6. Step 6: Final answer
   x = 2,871,942.25