Finding the Third Proportional to 20,548.69 and 30,488.91

Step by Step Solution

1. Step 1: Write the proportion equation
   20,548.69 : 30,488.91 = 30,488.91 : x
2. Step 2: Convert to fraction form
   20,548.69/30,488.91 = 30,488.91/x
3. Step 3: Cross multiply
   20,548.69x = 30,488.91 × 30,488.91
4. Step 4: Simplify right side
   20,548.69x = 929,573,404.32
5. Step 5: Solve for x
   x = 929,573,404.32/20,548.69
6. Step 6: Final answer
   x = 45,237.60