Finding the Third Proportional to 1,686,650 and 3,435,778

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686,650 : 3,435,778 = 3,435,778 : x
2. Step 2: Convert to fraction form
   1,686,650/3,435,778 = 3,435,778/x
3. Step 3: Cross multiply
   1,686,650x = 3,435,778 × 3,435,778
4. Step 4: Simplify right side
   1,686,650x = 11,804,570,465,284
5. Step 5: Solve for x
   x = 11,804,570,465,284/1,686,650
6. Step 6: Final answer
   x = 6,998,826.35