Finding the Third Proportional to 2,115,381 and 3,222,670

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,381 : 3,222,670 = 3,222,670 : x
2. Step 2: Convert to fraction form
   2,115,381/3,222,670 = 3,222,670/x
3. Step 3: Cross multiply
   2,115,381x = 3,222,670 × 3,222,670
4. Step 4: Simplify right side
   2,115,381x = 10,385,601,928,900
5. Step 5: Solve for x
   x = 10,385,601,928,900/2,115,381
6. Step 6: Final answer
   x = 4,909,565.67