Finding the Third Proportional to 9,260,151 and 19,942,578

Step by Step Solution

1. Step 1: Write the proportion equation
   9,260,151 : 19,942,578 = 19,942,578 : x
2. Step 2: Convert to fraction form
   9,260,151/19,942,578 = 19,942,578/x
3. Step 3: Cross multiply
   9,260,151x = 19,942,578 × 19,942,578
4. Step 4: Simplify right side
   9,260,151x = 397,706,417,286,084
5. Step 5: Solve for x
   x = 397,706,417,286,084/9,260,151
6. Step 6: Final answer
   x = 42,948,156.82