Finding the Third Proportional to 10,228,978.69 and 15,449,725.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,228,978.69 : 15,449,725.69 = 15,449,725.69 : x
2. Step 2: Convert to fraction form
   10,228,978.69/15,449,725.69 = 15,449,725.69/x
3. Step 3: Cross multiply
   10,228,978.69x = 15,449,725.69 × 15,449,725.69
4. Step 4: Simplify right side
   10,228,978.69x = 238,694,023,818,997.34
5. Step 5: Solve for x
   x = 238,694,023,818,997.34/10,228,978.69
6. Step 6: Final answer
   x = 23,335,078.81