Finding the Third Proportional to 728,680 and 1,018,971

Step by Step Solution

1. Step 1: Write the proportion equation
   728,680 : 1,018,971 = 1,018,971 : x
2. Step 2: Convert to fraction form
   728,680/1,018,971 = 1,018,971/x
3. Step 3: Cross multiply
   728,680x = 1,018,971 × 1,018,971
4. Step 4: Simplify right side
   728,680x = 1,038,301,898,841
5. Step 5: Solve for x
   x = 1,038,301,898,841/728,680
6. Step 6: Final answer
   x = 1,424,907.91