Finding the Third Proportional to 915,558 and 1,988,734

Step by Step Solution

1. Step 1: Write the proportion equation
   915,558 : 1,988,734 = 1,988,734 : x
2. Step 2: Convert to fraction form
   915,558/1,988,734 = 1,988,734/x
3. Step 3: Cross multiply
   915,558x = 1,988,734 × 1,988,734
4. Step 4: Simplify right side
   915,558x = 3,955,062,922,756
5. Step 5: Solve for x
   x = 3,955,062,922,756/915,558
6. Step 6: Final answer
   x = 4,319,838.75