Finding the Third Proportional to 789,690 and 1,271,745

Step by Step Solution

1. Step 1: Write the proportion equation
   789,690 : 1,271,745 = 1,271,745 : x
2. Step 2: Convert to fraction form
   789,690/1,271,745 = 1,271,745/x
3. Step 3: Cross multiply
   789,690x = 1,271,745 × 1,271,745
4. Step 4: Simplify right side
   789,690x = 1,617,335,345,025
5. Step 5: Solve for x
   x = 1,617,335,345,025/789,690
6. Step 6: Final answer
   x = 2,048,063.60