Finding the Third Proportional to 354,648 and 788,016

Step by Step Solution

1. Step 1: Write the proportion equation
   354,648 : 788,016 = 788,016 : x
2. Step 2: Convert to fraction form
   354,648/788,016 = 788,016/x
3. Step 3: Cross multiply
   354,648x = 788,016 × 788,016
4. Step 4: Simplify right side
   354,648x = 620,969,216,256
5. Step 5: Solve for x
   x = 620,969,216,256/354,648
6. Step 6: Final answer
   x = 1,750,945.21