Finding the Third Proportional to 1,139,766 and 1,771,821

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,766 : 1,771,821 = 1,771,821 : x
2. Step 2: Convert to fraction form
   1,139,766/1,771,821 = 1,771,821/x
3. Step 3: Cross multiply
   1,139,766x = 1,771,821 × 1,771,821
4. Step 4: Simplify right side
   1,139,766x = 3,139,349,656,041
5. Step 5: Solve for x
   x = 3,139,349,656,041/1,139,766
6. Step 6: Final answer
   x = 2,754,380.86