Finding the Third Proportional to 656,010 and 1,420,830

Step by Step Solution

1. Step 1: Write the proportion equation
   656,010 : 1,420,830 = 1,420,830 : x
2. Step 2: Convert to fraction form
   656,010/1,420,830 = 1,420,830/x
3. Step 3: Cross multiply
   656,010x = 1,420,830 × 1,420,830
4. Step 4: Simplify right side
   656,010x = 2,018,757,888,900
5. Step 5: Solve for x
   x = 2,018,757,888,900/656,010
6. Step 6: Final answer
   x = 3,077,327.92