Finding the Third Proportional to 616,818 and 1,427,845

Step by Step Solution

1. Step 1: Write the proportion equation
   616,818 : 1,427,845 = 1,427,845 : x
2. Step 2: Convert to fraction form
   616,818/1,427,845 = 1,427,845/x
3. Step 3: Cross multiply
   616,818x = 1,427,845 × 1,427,845
4. Step 4: Simplify right side
   616,818x = 2,038,741,344,025
5. Step 5: Solve for x
   x = 2,038,741,344,025/616,818
6. Step 6: Final answer
   x = 3,305,255.92