Finding the Third Proportional to 87,278.50 and 209,934

Step by Step Solution

1. Step 1: Write the proportion equation
   87,278.50 : 209,934 = 209,934 : x
2. Step 2: Convert to fraction form
   87,278.50/209,934 = 209,934/x
3. Step 3: Cross multiply
   87,278.50x = 209,934 × 209,934
4. Step 4: Simplify right side
   87,278.50x = 44,072,284,356
5. Step 5: Solve for x
   x = 44,072,284,356/87,278.50
6. Step 6: Final answer
   x = 504,961.52