Finding the Third Proportional to 611,115 and 1,315,845

Step by Step Solution

1. Step 1: Write the proportion equation
   611,115 : 1,315,845 = 1,315,845 : x
2. Step 2: Convert to fraction form
   611,115/1,315,845 = 1,315,845/x
3. Step 3: Cross multiply
   611,115x = 1,315,845 × 1,315,845
4. Step 4: Simplify right side
   611,115x = 1,731,448,064,025
5. Step 5: Solve for x
   x = 1,731,448,064,025/611,115
6. Step 6: Final answer
   x = 2,833,260.62