Finding the Third Proportional to 72,599.75 and 109,994.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,599.75 : 109,994.25 = 109,994.25 : x
2. Step 2: Convert to fraction form
   72,599.75/109,994.25 = 109,994.25/x
3. Step 3: Cross multiply
   72,599.75x = 109,994.25 × 109,994.25
4. Step 4: Simplify right side
   72,599.75x = 12,098,735,033.06
5. Step 5: Solve for x
   x = 12,098,735,033.06/72,599.75
6. Step 6: Final answer
   x = 166,649.82