Finding the Third Proportional to 789,872 and 1,128,704

Step by Step Solution

1. Step 1: Write the proportion equation
   789,872 : 1,128,704 = 1,128,704 : x
2. Step 2: Convert to fraction form
   789,872/1,128,704 = 1,128,704/x
3. Step 3: Cross multiply
   789,872x = 1,128,704 × 1,128,704
4. Step 4: Simplify right side
   789,872x = 1,273,972,719,616
5. Step 5: Solve for x
   x = 1,273,972,719,616/789,872
6. Step 6: Final answer
   x = 1,612,885.02