Finding the Third Proportional to 478,544 and 1,006,688

Step by Step Solution

1. Step 1: Write the proportion equation
   478,544 : 1,006,688 = 1,006,688 : x
2. Step 2: Convert to fraction form
   478,544/1,006,688 = 1,006,688/x
3. Step 3: Cross multiply
   478,544x = 1,006,688 × 1,006,688
4. Step 4: Simplify right side
   478,544x = 1,013,420,729,344
5. Step 5: Solve for x
   x = 1,013,420,729,344/478,544
6. Step 6: Final answer
   x = 2,117,716.93