Finding the Third Proportional to 728,680 and 1,018,973

Step by Step Solution

1. Step 1: Write the proportion equation
   728,680 : 1,018,973 = 1,018,973 : x
2. Step 2: Convert to fraction form
   728,680/1,018,973 = 1,018,973/x
3. Step 3: Cross multiply
   728,680x = 1,018,973 × 1,018,973
4. Step 4: Simplify right side
   728,680x = 1,038,305,974,729
5. Step 5: Solve for x
   x = 1,038,305,974,729/728,680
6. Step 6: Final answer
   x = 1,424,913.51