Finding the Third Proportional to 9,139,393 and 19,707,035

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,393 : 19,707,035 = 19,707,035 : x
2. Step 2: Convert to fraction form
   9,139,393/19,707,035 = 19,707,035/x
3. Step 3: Cross multiply
   9,139,393x = 19,707,035 × 19,707,035
4. Step 4: Simplify right side
   9,139,393x = 388,367,228,491,225
5. Step 5: Solve for x
   x = 388,367,228,491,225/9,139,393
6. Step 6: Final answer
   x = 42,493,766.11