Finding the Third Proportional to 72,440.58 and 156,940.03

Step by Step Solution

1. Step 1: Write the proportion equation
   72,440.58 : 156,940.03 = 156,940.03 : x
2. Step 2: Convert to fraction form
   72,440.58/156,940.03 = 156,940.03/x
3. Step 3: Cross multiply
   72,440.58x = 156,940.03 × 156,940.03
4. Step 4: Simplify right side
   72,440.58x = 24,630,173,408.75
5. Step 5: Solve for x
   x = 24,630,173,408.75/72,440.58
6. Step 6: Final answer
   x = 340,005.20