Finding the Third Proportional to 619,722 and 1,313,856

Step by Step Solution

1. Step 1: Write the proportion equation
   619,722 : 1,313,856 = 1,313,856 : x
2. Step 2: Convert to fraction form
   619,722/1,313,856 = 1,313,856/x
3. Step 3: Cross multiply
   619,722x = 1,313,856 × 1,313,856
4. Step 4: Simplify right side
   619,722x = 1,726,217,588,736
5. Step 5: Solve for x
   x = 1,726,217,588,736/619,722
6. Step 6: Final answer
   x = 2,785,470.89