Finding the Third Proportional to 538,222 and 1,268,740

Step by Step Solution

1. Step 1: Write the proportion equation
   538,222 : 1,268,740 = 1,268,740 : x
2. Step 2: Convert to fraction form
   538,222/1,268,740 = 1,268,740/x
3. Step 3: Cross multiply
   538,222x = 1,268,740 × 1,268,740
4. Step 4: Simplify right side
   538,222x = 1,609,701,187,600
5. Step 5: Solve for x
   x = 1,609,701,187,600/538,222
6. Step 6: Final answer
   x = 2,990,775.53