Finding the Third Proportional to 2,151,672 and 4,681,824

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151,672 : 4,681,824 = 4,681,824 : x
2. Step 2: Convert to fraction form
   2,151,672/4,681,824 = 4,681,824/x
3. Step 3: Cross multiply
   2,151,672x = 4,681,824 × 4,681,824
4. Step 4: Simplify right side
   2,151,672x = 21,919,475,966,976
5. Step 5: Solve for x
   x = 21,919,475,966,976/2,151,672
6. Step 6: Final answer
   x = 10,187,182.79