Finding the Third Proportional to 1,671,840 and 2,389,824

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671,840 : 2,389,824 = 2,389,824 : x
2. Step 2: Convert to fraction form
   1,671,840/2,389,824 = 2,389,824/x
3. Step 3: Cross multiply
   1,671,840x = 2,389,824 × 2,389,824
4. Step 4: Simplify right side
   1,671,840x = 5,711,258,750,976
5. Step 5: Solve for x
   x = 5,711,258,750,976/1,671,840
6. Step 6: Final answer
   x = 3,416,151.52