Finding the Third Proportional to 672,691 and 1,042,661

Step by Step Solution

1. Step 1: Write the proportion equation
   672,691 : 1,042,661 = 1,042,661 : x
2. Step 2: Convert to fraction form
   672,691/1,042,661 = 1,042,661/x
3. Step 3: Cross multiply
   672,691x = 1,042,661 × 1,042,661
4. Step 4: Simplify right side
   672,691x = 1,087,141,960,921
5. Step 5: Solve for x
   x = 1,087,141,960,921/672,691
6. Step 6: Final answer
   x = 1,616,108.97