Finding the Third Proportional to 3,586,869 and 7,759,854

Step by Step Solution

1. Step 1: Write the proportion equation
   3,586,869 : 7,759,854 = 7,759,854 : x
2. Step 2: Convert to fraction form
   3,586,869/7,759,854 = 7,759,854/x
3. Step 3: Cross multiply
   3,586,869x = 7,759,854 × 7,759,854
4. Step 4: Simplify right side
   3,586,869x = 60,215,334,101,316
5. Step 5: Solve for x
   x = 60,215,334,101,316/3,586,869
6. Step 6: Final answer
   x = 16,787,714.88