Finding the Third Proportional to 656,724 and 1,428,468

Step by Step Solution

1. Step 1: Write the proportion equation
   656,724 : 1,428,468 = 1,428,468 : x
2. Step 2: Convert to fraction form
   656,724/1,428,468 = 1,428,468/x
3. Step 3: Cross multiply
   656,724x = 1,428,468 × 1,428,468
4. Step 4: Simplify right side
   656,724x = 2,040,520,827,024
5. Step 5: Solve for x
   x = 2,040,520,827,024/656,724
6. Step 6: Final answer
   x = 3,107,120.84