Finding the Third Proportional to 621,706 and 1,115,486

Step by Step Solution

1. Step 1: Write the proportion equation
   621,706 : 1,115,486 = 1,115,486 : x
2. Step 2: Convert to fraction form
   621,706/1,115,486 = 1,115,486/x
3. Step 3: Cross multiply
   621,706x = 1,115,486 × 1,115,486
4. Step 4: Simplify right side
   621,706x = 1,244,309,016,196
5. Step 5: Solve for x
   x = 1,244,309,016,196/621,706
6. Step 6: Final answer
   x = 2,001,442.83