Finding the Third Proportional to 3,855,185 and 8,144,386

Step by Step Solution

1. Step 1: Write the proportion equation
   3,855,185 : 8,144,386 = 8,144,386 : x
2. Step 2: Convert to fraction form
   3,855,185/8,144,386 = 8,144,386/x
3. Step 3: Cross multiply
   3,855,185x = 8,144,386 × 8,144,386
4. Step 4: Simplify right side
   3,855,185x = 66,331,023,316,996
5. Step 5: Solve for x
   x = 66,331,023,316,996/3,855,185
6. Step 6: Final answer
   x = 17,205,665.44