Finding the Third Proportional to 818,724 and 1,761,864

Step by Step Solution

1. Step 1: Write the proportion equation
   818,724 : 1,761,864 = 1,761,864 : x
2. Step 2: Convert to fraction form
   818,724/1,761,864 = 1,761,864/x
3. Step 3: Cross multiply
   818,724x = 1,761,864 × 1,761,864
4. Step 4: Simplify right side
   818,724x = 3,104,164,754,496
5. Step 5: Solve for x
   x = 3,104,164,754,496/818,724
6. Step 6: Final answer
   x = 3,791,466.67