Finding the Third Proportional to 989,732 and 2,206,910

Step by Step Solution

1. Step 1: Write the proportion equation
   989,732 : 2,206,910 = 2,206,910 : x
2. Step 2: Convert to fraction form
   989,732/2,206,910 = 2,206,910/x
3. Step 3: Cross multiply
   989,732x = 2,206,910 × 2,206,910
4. Step 4: Simplify right side
   989,732x = 4,870,451,748,100
5. Step 5: Solve for x
   x = 4,870,451,748,100/989,732
6. Step 6: Final answer
   x = 4,920,980.37