Finding the Third Proportional to 14,689.69 and 16,518.94

Step by Step Solution

1. Step 1: Write the proportion equation
   14,689.69 : 16,518.94 = 16,518.94 : x
2. Step 2: Convert to fraction form
   14,689.69/16,518.94 = 16,518.94/x
3. Step 3: Cross multiply
   14,689.69x = 16,518.94 × 16,518.94
4. Step 4: Simplify right side
   14,689.69x = 272,875,296.13
5. Step 5: Solve for x
   x = 272,875,296.13/14,689.69
6. Step 6: Final answer
   x = 18,575.98