Finding the Third Proportional to 2,586,190 and 5,620,040

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,190 : 5,620,040 = 5,620,040 : x
2. Step 2: Convert to fraction form
   2,586,190/5,620,040 = 5,620,040/x
3. Step 3: Cross multiply
   2,586,190x = 5,620,040 × 5,620,040
4. Step 4: Simplify right side
   2,586,190x = 31,584,849,601,600
5. Step 5: Solve for x
   x = 31,584,849,601,600/2,586,190
6. Step 6: Final answer
   x = 12,212,888.30