Finding the Third Proportional to 3,613,684 and 7,857,200

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613,684 : 7,857,200 = 7,857,200 : x
2. Step 2: Convert to fraction form
   3,613,684/7,857,200 = 7,857,200/x
3. Step 3: Cross multiply
   3,613,684x = 7,857,200 × 7,857,200
4. Step 4: Simplify right side
   3,613,684x = 61,735,591,840,000
5. Step 5: Solve for x
   x = 61,735,591,840,000/3,613,684
6. Step 6: Final answer
   x = 17,083,837.94