Finding the Third Proportional to 2,436,636 and 5,359,272

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436,636 : 5,359,272 = 5,359,272 : x
2. Step 2: Convert to fraction form
   2,436,636/5,359,272 = 5,359,272/x
3. Step 3: Cross multiply
   2,436,636x = 5,359,272 × 5,359,272
4. Step 4: Simplify right side
   2,436,636x = 28,721,796,369,984
5. Step 5: Solve for x
   x = 28,721,796,369,984/2,436,636
6. Step 6: Final answer
   x = 11,787,479.28