Finding the Third Proportional to 4,934,621 and 7,742,739

Step by Step Solution

1. Step 1: Write the proportion equation
   4,934,621 : 7,742,739 = 7,742,739 : x
2. Step 2: Convert to fraction form
   4,934,621/7,742,739 = 7,742,739/x
3. Step 3: Cross multiply
   4,934,621x = 7,742,739 × 7,742,739
4. Step 4: Simplify right side
   4,934,621x = 59,950,007,222,121
5. Step 5: Solve for x
   x = 59,950,007,222,121/4,934,621
6. Step 6: Final answer
   x = 12,148,857.47