Finding the Third Proportional to 778,590 and 1,697,148

Step by Step Solution

1. Step 1: Write the proportion equation
   778,590 : 1,697,148 = 1,697,148 : x
2. Step 2: Convert to fraction form
   778,590/1,697,148 = 1,697,148/x
3. Step 3: Cross multiply
   778,590x = 1,697,148 × 1,697,148
4. Step 4: Simplify right side
   778,590x = 2,880,311,333,904
5. Step 5: Solve for x
   x = 2,880,311,333,904/778,590
6. Step 6: Final answer
   x = 3,699,394.20