Finding the Third Proportional to 639,252 and 1,365,984

Step by Step Solution

1. Step 1: Write the proportion equation
   639,252 : 1,365,984 = 1,365,984 : x
2. Step 2: Convert to fraction form
   639,252/1,365,984 = 1,365,984/x
3. Step 3: Cross multiply
   639,252x = 1,365,984 × 1,365,984
4. Step 4: Simplify right side
   639,252x = 1,865,912,288,256
5. Step 5: Solve for x
   x = 1,865,912,288,256/639,252
6. Step 6: Final answer
   x = 2,918,899.41