Finding the Third Proportional to 678,726 and 1,462,356

Step by Step Solution

1. Step 1: Write the proportion equation
   678,726 : 1,462,356 = 1,462,356 : x
2. Step 2: Convert to fraction form
   678,726/1,462,356 = 1,462,356/x
3. Step 3: Cross multiply
   678,726x = 1,462,356 × 1,462,356
4. Step 4: Simplify right side
   678,726x = 2,138,485,070,736
5. Step 5: Solve for x
   x = 2,138,485,070,736/678,726
6. Step 6: Final answer
   x = 3,150,733.98