Finding the Third Proportional to 10,272,789 and 15,928,560

Step by Step Solution

1. Step 1: Write the proportion equation
   10,272,789 : 15,928,560 = 15,928,560 : x
2. Step 2: Convert to fraction form
   10,272,789/15,928,560 = 15,928,560/x
3. Step 3: Cross multiply
   10,272,789x = 15,928,560 × 15,928,560
4. Step 4: Simplify right side
   10,272,789x = 253,719,023,673,600
5. Step 5: Solve for x
   x = 253,719,023,673,600/10,272,789
6. Step 6: Final answer
   x = 24,698,163.63