Finding the Third Proportional to 3,413,186 and 7,312,155

Step by Step Solution

1. Step 1: Write the proportion equation
   3,413,186 : 7,312,155 = 7,312,155 : x
2. Step 2: Convert to fraction form
   3,413,186/7,312,155 = 7,312,155/x
3. Step 3: Cross multiply
   3,413,186x = 7,312,155 × 7,312,155
4. Step 4: Simplify right side
   3,413,186x = 53,467,610,744,025
5. Step 5: Solve for x
   x = 53,467,610,744,025/3,413,186
6. Step 6: Final answer
   x = 15,665,015.25