Finding the Third Proportional to 478,644 and 1,009,574

Step by Step Solution

1. Step 1: Write the proportion equation
   478,644 : 1,009,574 = 1,009,574 : x
2. Step 2: Convert to fraction form
   478,644/1,009,574 = 1,009,574/x
3. Step 3: Cross multiply
   478,644x = 1,009,574 × 1,009,574
4. Step 4: Simplify right side
   478,644x = 1,019,239,661,476
5. Step 5: Solve for x
   x = 1,019,239,661,476/478,644
6. Step 6: Final answer
   x = 2,129,431.61