Finding the Third Proportional to 109,245 and 149,509.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,245 : 149,509.50 = 149,509.50 : x
2. Step 2: Convert to fraction form
   109,245/149,509.50 = 149,509.50/x
3. Step 3: Cross multiply
   109,245x = 149,509.50 × 149,509.50
4. Step 4: Simplify right side
   109,245x = 22,353,090,590.25
5. Step 5: Solve for x
   x = 22,353,090,590.25/109,245
6. Step 6: Final answer
   x = 204,614.31