Finding the Third Proportional to 787,772 and 1,718,128

Step by Step Solution

1. Step 1: Write the proportion equation
   787,772 : 1,718,128 = 1,718,128 : x
2. Step 2: Convert to fraction form
   787,772/1,718,128 = 1,718,128/x
3. Step 3: Cross multiply
   787,772x = 1,718,128 × 1,718,128
4. Step 4: Simplify right side
   787,772x = 2,951,963,824,384
5. Step 5: Solve for x
   x = 2,951,963,824,384/787,772
6. Step 6: Final answer
   x = 3,747,231.21