Finding the Third Proportional to 17,572.50 and 37,831.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,572.50 : 37,831.50 = 37,831.50 : x
2. Step 2: Convert to fraction form
   17,572.50/37,831.50 = 37,831.50/x
3. Step 3: Cross multiply
   17,572.50x = 37,831.50 × 37,831.50
4. Step 4: Simplify right side
   17,572.50x = 1,431,222,392.25
5. Step 5: Solve for x
   x = 1,431,222,392.25/17,572.50
6. Step 6: Final answer
   x = 81,446.71