Finding the Third Proportional to 689,960 and 1,065,708

Step by Step Solution

1. Step 1: Write the proportion equation
   689,960 : 1,065,708 = 1,065,708 : x
2. Step 2: Convert to fraction form
   689,960/1,065,708 = 1,065,708/x
3. Step 3: Cross multiply
   689,960x = 1,065,708 × 1,065,708
4. Step 4: Simplify right side
   689,960x = 1,135,733,541,264
5. Step 5: Solve for x
   x = 1,135,733,541,264/689,960
6. Step 6: Final answer
   x = 1,646,086.06