Finding the Third Proportional to 656,025 and 1,420,860

Step by Step Solution

1. Step 1: Write the proportion equation
   656,025 : 1,420,860 = 1,420,860 : x
2. Step 2: Convert to fraction form
   656,025/1,420,860 = 1,420,860/x
3. Step 3: Cross multiply
   656,025x = 1,420,860 × 1,420,860
4. Step 4: Simplify right side
   656,025x = 2,018,843,139,600
5. Step 5: Solve for x
   x = 2,018,843,139,600/656,025
6. Step 6: Final answer
   x = 3,077,387.51