Finding the Third Proportional to 989,725 and 2,206,898

Step by Step Solution

1. Step 1: Write the proportion equation
   989,725 : 2,206,898 = 2,206,898 : x
2. Step 2: Convert to fraction form
   989,725/2,206,898 = 2,206,898/x
3. Step 3: Cross multiply
   989,725x = 2,206,898 × 2,206,898
4. Step 4: Simplify right side
   989,725x = 4,870,398,782,404
5. Step 5: Solve for x
   x = 4,870,398,782,404/989,725
6. Step 6: Final answer
   x = 4,920,961.66