Finding the Third Proportional to 1,139,340 and 1,771,218

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,340 : 1,771,218 = 1,771,218 : x
2. Step 2: Convert to fraction form
   1,139,340/1,771,218 = 1,771,218/x
3. Step 3: Cross multiply
   1,139,340x = 1,771,218 × 1,771,218
4. Step 4: Simplify right side
   1,139,340x = 3,137,213,203,524
5. Step 5: Solve for x
   x = 3,137,213,203,524/1,139,340
6. Step 6: Final answer
   x = 2,753,535.56