Finding the Third Proportional to 9,707,540 and 21,109,438

Step by Step Solution

1. Step 1: Write the proportion equation
   9,707,540 : 21,109,438 = 21,109,438 : x
2. Step 2: Convert to fraction form
   9,707,540/21,109,438 = 21,109,438/x
3. Step 3: Cross multiply
   9,707,540x = 21,109,438 × 21,109,438
4. Step 4: Simplify right side
   9,707,540x = 445,608,372,675,844
5. Step 5: Solve for x
   x = 445,608,372,675,844/9,707,540
6. Step 6: Final answer
   x = 45,903,325.94