Finding the Third Proportional to 1,391,268 and 2,090,226

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,268 : 2,090,226 = 2,090,226 : x
2. Step 2: Convert to fraction form
   1,391,268/2,090,226 = 2,090,226/x
3. Step 3: Cross multiply
   1,391,268x = 2,090,226 × 2,090,226
4. Step 4: Simplify right side
   1,391,268x = 4,369,044,731,076
5. Step 5: Solve for x
   x = 4,369,044,731,076/1,391,268
6. Step 6: Final answer
   x = 3,140,332.94