Finding the Third Proportional to 8,272,896 and 12,359,286

Step by Step Solution

1. Step 1: Write the proportion equation
   8,272,896 : 12,359,286 = 12,359,286 : x
2. Step 2: Convert to fraction form
   8,272,896/12,359,286 = 12,359,286/x
3. Step 3: Cross multiply
   8,272,896x = 12,359,286 × 12,359,286
4. Step 4: Simplify right side
   8,272,896x = 152,751,950,429,796
5. Step 5: Solve for x
   x = 152,751,950,429,796/8,272,896
6. Step 6: Final answer
   x = 18,464,144.89