Finding the Third Proportional to 3,645,940 and 7,857,112

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,940 : 7,857,112 = 7,857,112 : x
2. Step 2: Convert to fraction form
   3,645,940/7,857,112 = 7,857,112/x
3. Step 3: Cross multiply
   3,645,940x = 7,857,112 × 7,857,112
4. Step 4: Simplify right side
   3,645,940x = 61,734,208,980,544
5. Step 5: Solve for x
   x = 61,734,208,980,544/3,645,940
6. Step 6: Final answer
   x = 16,932,316.21