Finding the Third Proportional to 647,020.50 and 979,599

Step by Step Solution

1. Step 1: Write the proportion equation
   647,020.50 : 979,599 = 979,599 : x
2. Step 2: Convert to fraction form
   647,020.50/979,599 = 979,599/x
3. Step 3: Cross multiply
   647,020.50x = 979,599 × 979,599
4. Step 4: Simplify right side
   647,020.50x = 959,614,200,801
5. Step 5: Solve for x
   x = 959,614,200,801/647,020.50
6. Step 6: Final answer
   x = 1,483,127.97