Finding the Third Proportional to 1,671,810 and 3,945,861

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671,810 : 3,945,861 = 3,945,861 : x
2. Step 2: Convert to fraction form
   1,671,810/3,945,861 = 3,945,861/x
3. Step 3: Cross multiply
   1,671,810x = 3,945,861 × 3,945,861
4. Step 4: Simplify right side
   1,671,810x = 15,569,819,031,321
5. Step 5: Solve for x
   x = 15,569,819,031,321/1,671,810
6. Step 6: Final answer
   x = 9,313,151.03