Finding the Third Proportional to 12,728,461.50 and 19,704,915.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,728,461.50 : 19,704,915.56 = 19,704,915.56 : x
2. Step 2: Convert to fraction form
   12,728,461.50/19,704,915.56 = 19,704,915.56/x
3. Step 3: Cross multiply
   12,728,461.50x = 19,704,915.56 × 19,704,915.56
4. Step 4: Simplify right side
   12,728,461.50x = 388,283,697,325,254.69
5. Step 5: Solve for x
   x = 388,283,697,325,254.69/12,728,461.50
6. Step 6: Final answer
   x = 30,505,155.50