Finding the Third Proportional to 639,507 and 1,367,622

Step by Step Solution

1. Step 1: Write the proportion equation
   639,507 : 1,367,622 = 1,367,622 : x
2. Step 2: Convert to fraction form
   639,507/1,367,622 = 1,367,622/x
3. Step 3: Cross multiply
   639,507x = 1,367,622 × 1,367,622
4. Step 4: Simplify right side
   639,507x = 1,870,389,934,884
5. Step 5: Solve for x
   x = 1,870,389,934,884/639,507
6. Step 6: Final answer
   x = 2,924,737.23