Finding the Third Proportional to 19,700 and 28,707.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,700 : 28,707.50 = 28,707.50 : x
2. Step 2: Convert to fraction form
   19,700/28,707.50 = 28,707.50/x
3. Step 3: Cross multiply
   19,700x = 28,707.50 × 28,707.50
4. Step 4: Simplify right side
   19,700x = 824,120,556.25
5. Step 5: Solve for x
   x = 824,120,556.25/19,700
6. Step 6: Final answer
   x = 41,833.53