Finding the Third Proportional to 19,900.69 and 41,487.19

Step by Step Solution

1. Step 1: Write the proportion equation
   19,900.69 : 41,487.19 = 41,487.19 : x
2. Step 2: Convert to fraction form
   19,900.69/41,487.19 = 41,487.19/x
3. Step 3: Cross multiply
   19,900.69x = 41,487.19 × 41,487.19
4. Step 4: Simplify right side
   19,900.69x = 1,721,186,726.66
5. Step 5: Solve for x
   x = 1,721,186,726.66/19,900.69
6. Step 6: Final answer
   x = 86,488.81