Finding the Third Proportional to 726,364 and 1,200,426

Step by Step Solution

1. Step 1: Write the proportion equation
   726,364 : 1,200,426 = 1,200,426 : x
2. Step 2: Convert to fraction form
   726,364/1,200,426 = 1,200,426/x
3. Step 3: Cross multiply
   726,364x = 1,200,426 × 1,200,426
4. Step 4: Simplify right side
   726,364x = 1,441,022,581,476
5. Step 5: Solve for x
   x = 1,441,022,581,476/726,364
6. Step 6: Final answer
   x = 1,983,884.91