Finding the Third Proportional to 109,173.50 and 231,468.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,173.50 : 231,468.50 = 231,468.50 : x
2. Step 2: Convert to fraction form
   109,173.50/231,468.50 = 231,468.50/x
3. Step 3: Cross multiply
   109,173.50x = 231,468.50 × 231,468.50
4. Step 4: Simplify right side
   109,173.50x = 53,577,666,492.25
5. Step 5: Solve for x
   x = 53,577,666,492.25/109,173.50
6. Step 6: Final answer
   x = 490,757.07