Finding the Third Proportional to 227,689.50 and 334,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   227,689.50 : 334,156.50 = 334,156.50 : x
2. Step 2: Convert to fraction form
   227,689.50/334,156.50 = 334,156.50/x
3. Step 3: Cross multiply
   227,689.50x = 334,156.50 × 334,156.50
4. Step 4: Simplify right side
   227,689.50x = 111,660,566,492.25
5. Step 5: Solve for x
   x = 111,660,566,492.25/227,689.50
6. Step 6: Final answer
   x = 490,407.18