Finding the Third Proportional to 3,645,986 and 7,857,188

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,986 : 7,857,188 = 7,857,188 : x
2. Step 2: Convert to fraction form
   3,645,986/7,857,188 = 7,857,188/x
3. Step 3: Cross multiply
   3,645,986x = 7,857,188 × 7,857,188
4. Step 4: Simplify right side
   3,645,986x = 61,735,403,267,344
5. Step 5: Solve for x
   x = 61,735,403,267,344/3,645,986
6. Step 6: Final answer
   x = 16,932,430.15