Finding the Third Proportional to 368,196 and 788,820

Step by Step Solution

1. Step 1: Write the proportion equation
   368,196 : 788,820 = 788,820 : x
2. Step 2: Convert to fraction form
   368,196/788,820 = 788,820/x
3. Step 3: Cross multiply
   368,196x = 788,820 × 788,820
4. Step 4: Simplify right side
   368,196x = 622,236,992,400
5. Step 5: Solve for x
   x = 622,236,992,400/368,196
6. Step 6: Final answer
   x = 1,689,961.30