Finding the Third Proportional to 616,821 and 1,427,852

Step by Step Solution

1. Step 1: Write the proportion equation
   616,821 : 1,427,852 = 1,427,852 : x
2. Step 2: Convert to fraction form
   616,821/1,427,852 = 1,427,852/x
3. Step 3: Cross multiply
   616,821x = 1,427,852 × 1,427,852
4. Step 4: Simplify right side
   616,821x = 2,038,761,333,904
5. Step 5: Solve for x
   x = 2,038,761,333,904/616,821
6. Step 6: Final answer
   x = 3,305,272.25