Finding the Third Proportional to 3,186,869 and 7,465,620

Step by Step Solution

1. Step 1: Write the proportion equation
   3,186,869 : 7,465,620 = 7,465,620 : x
2. Step 2: Convert to fraction form
   3,186,869/7,465,620 = 7,465,620/x
3. Step 3: Cross multiply
   3,186,869x = 7,465,620 × 7,465,620
4. Step 4: Simplify right side
   3,186,869x = 55,735,481,984,400
5. Step 5: Solve for x
   x = 55,735,481,984,400/3,186,869
6. Step 6: Final answer
   x = 17,489,103.56