Finding the Third Proportional to 778,930 and 1,619,778

Step by Step Solution

1. Step 1: Write the proportion equation
   778,930 : 1,619,778 = 1,619,778 : x
2. Step 2: Convert to fraction form
   778,930/1,619,778 = 1,619,778/x
3. Step 3: Cross multiply
   778,930x = 1,619,778 × 1,619,778
4. Step 4: Simplify right side
   778,930x = 2,623,680,769,284
5. Step 5: Solve for x
   x = 2,623,680,769,284/778,930
6. Step 6: Final answer
   x = 3,368,313.93