Finding the Third Proportional to 656,620 and 1,437,800

Step by Step Solution

1. Step 1: Write the proportion equation
   656,620 : 1,437,800 = 1,437,800 : x
2. Step 2: Convert to fraction form
   656,620/1,437,800 = 1,437,800/x
3. Step 3: Cross multiply
   656,620x = 1,437,800 × 1,437,800
4. Step 4: Simplify right side
   656,620x = 2,067,268,840,000
5. Step 5: Solve for x
   x = 2,067,268,840,000/656,620
6. Step 6: Final answer
   x = 3,148,348.88