Finding the Third Proportional to 639,525 and 1,367,665

Step by Step Solution

1. Step 1: Write the proportion equation
   639,525 : 1,367,665 = 1,367,665 : x
2. Step 2: Convert to fraction form
   639,525/1,367,665 = 1,367,665/x
3. Step 3: Cross multiply
   639,525x = 1,367,665 × 1,367,665
4. Step 4: Simplify right side
   639,525x = 1,870,507,552,225
5. Step 5: Solve for x
   x = 1,870,507,552,225/639,525
6. Step 6: Final answer
   x = 2,924,838.83