Finding the Third Proportional to 228,085.50 and 353,199

Step by Step Solution

1. Step 1: Write the proportion equation
   228,085.50 : 353,199 = 353,199 : x
2. Step 2: Convert to fraction form
   228,085.50/353,199 = 353,199/x
3. Step 3: Cross multiply
   228,085.50x = 353,199 × 353,199
4. Step 4: Simplify right side
   228,085.50x = 124,749,533,601
5. Step 5: Solve for x
   x = 124,749,533,601/228,085.50
6. Step 6: Final answer
   x = 546,941.97