Finding the Third Proportional to 778,410 and 1,676,900

Step by Step Solution

1. Step 1: Write the proportion equation
   778,410 : 1,676,900 = 1,676,900 : x
2. Step 2: Convert to fraction form
   778,410/1,676,900 = 1,676,900/x
3. Step 3: Cross multiply
   778,410x = 1,676,900 × 1,676,900
4. Step 4: Simplify right side
   778,410x = 2,811,993,610,000
5. Step 5: Solve for x
   x = 2,811,993,610,000/778,410
6. Step 6: Final answer
   x = 3,612,483.92