Finding the Third Proportional to 678,432 and 1,055,004

Step by Step Solution

1. Step 1: Write the proportion equation
   678,432 : 1,055,004 = 1,055,004 : x
2. Step 2: Convert to fraction form
   678,432/1,055,004 = 1,055,004/x
3. Step 3: Cross multiply
   678,432x = 1,055,004 × 1,055,004
4. Step 4: Simplify right side
   678,432x = 1,113,033,440,016
5. Step 5: Solve for x
   x = 1,113,033,440,016/678,432
6. Step 6: Final answer
   x = 1,640,596.91