Finding the Third Proportional to 1,970,406 and 4,311,144

Step by Step Solution

1. Step 1: Write the proportion equation
   1,970,406 : 4,311,144 = 4,311,144 : x
2. Step 2: Convert to fraction form
   1,970,406/4,311,144 = 4,311,144/x
3. Step 3: Cross multiply
   1,970,406x = 4,311,144 × 4,311,144
4. Step 4: Simplify right side
   1,970,406x = 18,585,962,588,736
5. Step 5: Solve for x
   x = 18,585,962,588,736/1,970,406
6. Step 6: Final answer
   x = 9,432,554.81