Finding the Third Proportional to 1,891,756 and 4,151,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891,756 : 4,151,420 = 4,151,420 : x
2. Step 2: Convert to fraction form
   1,891,756/4,151,420 = 4,151,420/x
3. Step 3: Cross multiply
   1,891,756x = 4,151,420 × 4,151,420
4. Step 4: Simplify right side
   1,891,756x = 17,234,288,016,400
5. Step 5: Solve for x
   x = 17,234,288,016,400/1,891,756
6. Step 6: Final answer
   x = 9,110,206.61