Finding the Third Proportional to 3,186,864 and 7,465,608

Step by Step Solution

1. Step 1: Write the proportion equation
   3,186,864 : 7,465,608 = 7,465,608 : x
2. Step 2: Convert to fraction form
   3,186,864/7,465,608 = 7,465,608/x
3. Step 3: Cross multiply
   3,186,864x = 7,465,608 × 7,465,608
4. Step 4: Simplify right side
   3,186,864x = 55,735,302,809,664
5. Step 5: Solve for x
   x = 55,735,302,809,664/3,186,864
6. Step 6: Final answer
   x = 17,489,074.78