Finding the Third Proportional to 109,401.75 and 156,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,401.75 : 156,442.50 = 156,442.50 : x
2. Step 2: Convert to fraction form
   109,401.75/156,442.50 = 156,442.50/x
3. Step 3: Cross multiply
   109,401.75x = 156,442.50 × 156,442.50
4. Step 4: Simplify right side
   109,401.75x = 24,474,255,806.25
5. Step 5: Solve for x
   x = 24,474,255,806.25/109,401.75
6. Step 6: Final answer
   x = 223,709.91