Finding the Third Proportional to 785,592 and 1,687,446

Step by Step Solution

1. Step 1: Write the proportion equation
   785,592 : 1,687,446 = 1,687,446 : x
2. Step 2: Convert to fraction form
   785,592/1,687,446 = 1,687,446/x
3. Step 3: Cross multiply
   785,592x = 1,687,446 × 1,687,446
4. Step 4: Simplify right side
   785,592x = 2,847,474,002,916
5. Step 5: Solve for x
   x = 2,847,474,002,916/785,592
6. Step 6: Final answer
   x = 3,624,621.94