Finding the Third Proportional to 4,282,372 and 9,509,384

Step by Step Solution

1. Step 1: Write the proportion equation
   4,282,372 : 9,509,384 = 9,509,384 : x
2. Step 2: Convert to fraction form
   4,282,372/9,509,384 = 9,509,384/x
3. Step 3: Cross multiply
   4,282,372x = 9,509,384 × 9,509,384
4. Step 4: Simplify right side
   4,282,372x = 90,428,384,059,456
5. Step 5: Solve for x
   x = 90,428,384,059,456/4,282,372
6. Step 6: Final answer
   x = 21,116,424.28