Finding the Third Proportional to 778,276 and 1,676,616

Step by Step Solution

1. Step 1: Write the proportion equation
   778,276 : 1,676,616 = 1,676,616 : x
2. Step 2: Convert to fraction form
   778,276/1,676,616 = 1,676,616/x
3. Step 3: Cross multiply
   778,276x = 1,676,616 × 1,676,616
4. Step 4: Simplify right side
   778,276x = 2,811,041,211,456
5. Step 5: Solve for x
   x = 2,811,041,211,456/778,276
6. Step 6: Final answer
   x = 3,611,882.17