Finding the Third Proportional to 73,408.50 and 105,981.75

Step by Step Solution

1. Step 1: Write the proportion equation
   73,408.50 : 105,981.75 = 105,981.75 : x
2. Step 2: Convert to fraction form
   73,408.50/105,981.75 = 105,981.75/x
3. Step 3: Cross multiply
   73,408.50x = 105,981.75 × 105,981.75
4. Step 4: Simplify right side
   73,408.50x = 11,232,131,333.06
5. Step 5: Solve for x
   x = 11,232,131,333.06/73,408.50
6. Step 6: Final answer
   x = 153,008.59