Finding the Third Proportional to 8,400,528 and 12,677,760

Step by Step Solution

1. Step 1: Write the proportion equation
   8,400,528 : 12,677,760 = 12,677,760 : x
2. Step 2: Convert to fraction form
   8,400,528/12,677,760 = 12,677,760/x
3. Step 3: Cross multiply
   8,400,528x = 12,677,760 × 12,677,760
4. Step 4: Simplify right side
   8,400,528x = 160,725,598,617,600
5. Step 5: Solve for x
   x = 160,725,598,617,600/8,400,528
6. Step 6: Final answer
   x = 19,132,797.20