Finding the Third Proportional to 3,158,628 and 4,501,686

Step by Step Solution

1. Step 1: Write the proportion equation
   3,158,628 : 4,501,686 = 4,501,686 : x
2. Step 2: Convert to fraction form
   3,158,628/4,501,686 = 4,501,686/x
3. Step 3: Cross multiply
   3,158,628x = 4,501,686 × 4,501,686
4. Step 4: Simplify right side
   3,158,628x = 20,265,176,842,596
5. Step 5: Solve for x
   x = 20,265,176,842,596/3,158,628
6. Step 6: Final answer
   x = 6,415,816.25