Finding the Third Proportional to 4,206,924 and 9,042,308

Step by Step Solution

1. Step 1: Write the proportion equation
   4,206,924 : 9,042,308 = 9,042,308 : x
2. Step 2: Convert to fraction form
   4,206,924/9,042,308 = 9,042,308/x
3. Step 3: Cross multiply
   4,206,924x = 9,042,308 × 9,042,308
4. Step 4: Simplify right side
   4,206,924x = 81,763,333,966,864
5. Step 5: Solve for x
   x = 81,763,333,966,864/4,206,924
6. Step 6: Final answer
   x = 19,435,419.79