Finding the Third Proportional to 8,036,205.50 and 12,129,040

Step by Step Solution

1. Step 1: Write the proportion equation
   8,036,205.50 : 12,129,040 = 12,129,040 : x
2. Step 2: Convert to fraction form
   8,036,205.50/12,129,040 = 12,129,040/x
3. Step 3: Cross multiply
   8,036,205.50x = 12,129,040 × 12,129,040
4. Step 4: Simplify right side
   8,036,205.50x = 147,113,611,321,600
5. Step 5: Solve for x
   x = 147,113,611,321,600/8,036,205.50
6. Step 6: Final answer
   x = 18,306,352.58