Finding the Third Proportional to 63,711 and 89,131.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,711 : 89,131.50 = 89,131.50 : x
2. Step 2: Convert to fraction form
   63,711/89,131.50 = 89,131.50/x
3. Step 3: Cross multiply
   63,711x = 89,131.50 × 89,131.50
4. Step 4: Simplify right side
   63,711x = 7,944,424,292.25
5. Step 5: Solve for x
   x = 7,944,424,292.25/63,711
6. Step 6: Final answer
   x = 124,694.70