Finding the Third Proportional to 645,732 and 1,317,744

Step by Step Solution

1. Step 1: Write the proportion equation
   645,732 : 1,317,744 = 1,317,744 : x
2. Step 2: Convert to fraction form
   645,732/1,317,744 = 1,317,744/x
3. Step 3: Cross multiply
   645,732x = 1,317,744 × 1,317,744
4. Step 4: Simplify right side
   645,732x = 1,736,449,249,536
5. Step 5: Solve for x
   x = 1,736,449,249,536/645,732
6. Step 6: Final answer
   x = 2,689,117.54