Finding the Third Proportional to 3,705,138 and 8,028,777

Step by Step Solution

1. Step 1: Write the proportion equation
   3,705,138 : 8,028,777 = 8,028,777 : x
2. Step 2: Convert to fraction form
   3,705,138/8,028,777 = 8,028,777/x
3. Step 3: Cross multiply
   3,705,138x = 8,028,777 × 8,028,777
4. Step 4: Simplify right side
   3,705,138x = 64,461,260,115,729
5. Step 5: Solve for x
   x = 64,461,260,115,729/3,705,138
6. Step 6: Final answer
   x = 17,397,802.76