Finding the Third Proportional to 919,920 and 2,010,840

Step by Step Solution

1. Step 1: Write the proportion equation
   919,920 : 2,010,840 = 2,010,840 : x
2. Step 2: Convert to fraction form
   919,920/2,010,840 = 2,010,840/x
3. Step 3: Cross multiply
   919,920x = 2,010,840 × 2,010,840
4. Step 4: Simplify right side
   919,920x = 4,043,477,505,600
5. Step 5: Solve for x
   x = 4,043,477,505,600/919,920
6. Step 6: Final answer
   x = 4,395,466.46