Finding the Third Proportional to 3,090,866 and 4,543,686

Step by Step Solution

1. Step 1: Write the proportion equation
   3,090,866 : 4,543,686 = 4,543,686 : x
2. Step 2: Convert to fraction form
   3,090,866/4,543,686 = 4,543,686/x
3. Step 3: Cross multiply
   3,090,866x = 4,543,686 × 4,543,686
4. Step 4: Simplify right side
   3,090,866x = 20,645,082,466,596
5. Step 5: Solve for x
   x = 20,645,082,466,596/3,090,866
6. Step 6: Final answer
   x = 6,679,384.50