Finding the Third Proportional to 656,434 and 1,545,505

Step by Step Solution

1. Step 1: Write the proportion equation
   656,434 : 1,545,505 = 1,545,505 : x
2. Step 2: Convert to fraction form
   656,434/1,545,505 = 1,545,505/x
3. Step 3: Cross multiply
   656,434x = 1,545,505 × 1,545,505
4. Step 4: Simplify right side
   656,434x = 2,388,585,705,025
5. Step 5: Solve for x
   x = 2,388,585,705,025/656,434
6. Step 6: Final answer
   x = 3,638,729.42