Finding the Third Proportional to 825,616 and 1,818,839

Step by Step Solution

1. Step 1: Write the proportion equation
   825,616 : 1,818,839 = 1,818,839 : x
2. Step 2: Convert to fraction form
   825,616/1,818,839 = 1,818,839/x
3. Step 3: Cross multiply
   825,616x = 1,818,839 × 1,818,839
4. Step 4: Simplify right side
   825,616x = 3,308,175,307,921
5. Step 5: Solve for x
   x = 3,308,175,307,921/825,616
6. Step 6: Final answer
   x = 4,006,917.63