Finding the Third Proportional to 7,797,878 and 17,388,738

Step by Step Solution

1. Step 1: Write the proportion equation
   7,797,878 : 17,388,738 = 17,388,738 : x
2. Step 2: Convert to fraction form
   7,797,878/17,388,738 = 17,388,738/x
3. Step 3: Cross multiply
   7,797,878x = 17,388,738 × 17,388,738
4. Step 4: Simplify right side
   7,797,878x = 302,368,209,232,644
5. Step 5: Solve for x
   x = 302,368,209,232,644/7,797,878
6. Step 6: Final answer
   x = 38,775,704.01