Finding the Third Proportional to 3,707,586 and 8,123,812

Step by Step Solution

1. Step 1: Write the proportion equation
   3,707,586 : 8,123,812 = 8,123,812 : x
2. Step 2: Convert to fraction form
   3,707,586/8,123,812 = 8,123,812/x
3. Step 3: Cross multiply
   3,707,586x = 8,123,812 × 8,123,812
4. Step 4: Simplify right side
   3,707,586x = 65,996,321,411,344
5. Step 5: Solve for x
   x = 65,996,321,411,344/3,707,586
6. Step 6: Final answer
   x = 17,800,348.10