Finding the Third Proportional to 12,520.69 and 19,499.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,520.69 : 19,499.06 = 19,499.06 : x
2. Step 2: Convert to fraction form
   12,520.69/19,499.06 = 19,499.06/x
3. Step 3: Cross multiply
   12,520.69x = 19,499.06 × 19,499.06
4. Step 4: Simplify right side
   12,520.69x = 380,213,438.38
5. Step 5: Solve for x
   x = 380,213,438.38/12,520.69
6. Step 6: Final answer
   x = 30,366.82