Finding the Third Proportional to 2,990,902 and 6,486,596

Step by Step Solution

1. Step 1: Write the proportion equation
   2,990,902 : 6,486,596 = 6,486,596 : x
2. Step 2: Convert to fraction form
   2,990,902/6,486,596 = 6,486,596/x
3. Step 3: Cross multiply
   2,990,902x = 6,486,596 × 6,486,596
4. Step 4: Simplify right side
   2,990,902x = 42,075,927,667,216
5. Step 5: Solve for x
   x = 42,075,927,667,216/2,990,902
6. Step 6: Final answer
   x = 14,067,972.69