Finding the Third Proportional to 656,660 and 1,437,878

Step by Step Solution

1. Step 1: Write the proportion equation
   656,660 : 1,437,878 = 1,437,878 : x
2. Step 2: Convert to fraction form
   656,660/1,437,878 = 1,437,878/x
3. Step 3: Cross multiply
   656,660x = 1,437,878 × 1,437,878
4. Step 4: Simplify right side
   656,660x = 2,067,493,142,884
5. Step 5: Solve for x
   x = 2,067,493,142,884/656,660
6. Step 6: Final answer
   x = 3,148,498.68