Finding the Third Proportional to 1,820,973 and 3,988,869

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820,973 : 3,988,869 = 3,988,869 : x
2. Step 2: Convert to fraction form
   1,820,973/3,988,869 = 3,988,869/x
3. Step 3: Cross multiply
   1,820,973x = 3,988,869 × 3,988,869
4. Step 4: Simplify right side
   1,820,973x = 15,911,075,899,161
5. Step 5: Solve for x
   x = 15,911,075,899,161/1,820,973
6. Step 6: Final answer
   x = 8,737,678.10