Finding the Third Proportional to 40,243 and 63,707.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,243 : 63,707.50 = 63,707.50 : x
2. Step 2: Convert to fraction form
   40,243/63,707.50 = 63,707.50/x
3. Step 3: Cross multiply
   40,243x = 63,707.50 × 63,707.50
4. Step 4: Simplify right side
   40,243x = 4,058,645,556.25
5. Step 5: Solve for x
   x = 4,058,645,556.25/40,243
6. Step 6: Final answer
   x = 100,853.45