Finding the Third Proportional to 718,648 and 1,564,792

Step by Step Solution

1. Step 1: Write the proportion equation
   718,648 : 1,564,792 = 1,564,792 : x
2. Step 2: Convert to fraction form
   718,648/1,564,792 = 1,564,792/x
3. Step 3: Cross multiply
   718,648x = 1,564,792 × 1,564,792
4. Step 4: Simplify right side
   718,648x = 2,448,574,003,264
5. Step 5: Solve for x
   x = 2,448,574,003,264/718,648
6. Step 6: Final answer
   x = 3,407,195.18