Finding the Third Proportional to 678,735 and 1,340,333

Step by Step Solution

1. Step 1: Write the proportion equation
   678,735 : 1,340,333 = 1,340,333 : x
2. Step 2: Convert to fraction form
   678,735/1,340,333 = 1,340,333/x
3. Step 3: Cross multiply
   678,735x = 1,340,333 × 1,340,333
4. Step 4: Simplify right side
   678,735x = 1,796,492,550,889
5. Step 5: Solve for x
   x = 1,796,492,550,889/678,735
6. Step 6: Final answer
   x = 2,646,824.68