Finding the Third Proportional to 2,115,379 and 3,222,668

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,379 : 3,222,668 = 3,222,668 : x
2. Step 2: Convert to fraction form
   2,115,379/3,222,668 = 3,222,668/x
3. Step 3: Cross multiply
   2,115,379x = 3,222,668 × 3,222,668
4. Step 4: Simplify right side
   2,115,379x = 10,385,589,038,224
5. Step 5: Solve for x
   x = 10,385,589,038,224/2,115,379
6. Step 6: Final answer
   x = 4,909,564.21