Finding the Third Proportional to 580,186 and 1,266,644

Step by Step Solution

1. Step 1: Write the proportion equation
   580,186 : 1,266,644 = 1,266,644 : x
2. Step 2: Convert to fraction form
   580,186/1,266,644 = 1,266,644/x
3. Step 3: Cross multiply
   580,186x = 1,266,644 × 1,266,644
4. Step 4: Simplify right side
   580,186x = 1,604,387,022,736
5. Step 5: Solve for x
   x = 1,604,387,022,736/580,186
6. Step 6: Final answer
   x = 2,765,297.72