Finding the Third Proportional to 81,981 and 118,483.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,981 : 118,483.50 = 118,483.50 : x
2. Step 2: Convert to fraction form
   81,981/118,483.50 = 118,483.50/x
3. Step 3: Cross multiply
   81,981x = 118,483.50 × 118,483.50
4. Step 4: Simplify right side
   81,981x = 14,038,339,772.25
5. Step 5: Solve for x
   x = 14,038,339,772.25/81,981
6. Step 6: Final answer
   x = 171,238.94