Finding the Third Proportional to 72,808.50 and 109,881

Step by Step Solution

1. Step 1: Write the proportion equation
   72,808.50 : 109,881 = 109,881 : x
2. Step 2: Convert to fraction form
   72,808.50/109,881 = 109,881/x
3. Step 3: Cross multiply
   72,808.50x = 109,881 × 109,881
4. Step 4: Simplify right side
   72,808.50x = 12,073,834,161
5. Step 5: Solve for x
   x = 12,073,834,161/72,808.50
6. Step 6: Final answer
   x = 165,830.01