Finding the Third Proportional to 904,920 and 1,989,162

Step by Step Solution

1. Step 1: Write the proportion equation
   904,920 : 1,989,162 = 1,989,162 : x
2. Step 2: Convert to fraction form
   904,920/1,989,162 = 1,989,162/x
3. Step 3: Cross multiply
   904,920x = 1,989,162 × 1,989,162
4. Step 4: Simplify right side
   904,920x = 3,956,765,462,244
5. Step 5: Solve for x
   x = 3,956,765,462,244/904,920
6. Step 6: Final answer
   x = 4,372,503.05