Finding the Third Proportional to 72,981.25 and 109,993.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,981.25 : 109,993.88 = 109,993.88 : x
2. Step 2: Convert to fraction form
   72,981.25/109,993.88 = 109,993.88/x
3. Step 3: Cross multiply
   72,981.25x = 109,993.88 × 109,993.88
4. Step 4: Simplify right side
   72,981.25x = 12,098,652,537.52
5. Step 5: Solve for x
   x = 12,098,652,537.52/72,981.25
6. Step 6: Final answer
   x = 165,777.55