Finding the Third Proportional to 18,680.63 and 28,567.69

Step by Step Solution

1. Step 1: Write the proportion equation
   18,680.63 : 28,567.69 = 28,567.69 : x
2. Step 2: Convert to fraction form
   18,680.63/28,567.69 = 28,567.69/x
3. Step 3: Cross multiply
   18,680.63x = 28,567.69 × 28,567.69
4. Step 4: Simplify right side
   18,680.63x = 816,112,769.10
5. Step 5: Solve for x
   x = 816,112,769.10/18,680.63
6. Step 6: Final answer
   x = 43,687.66