Finding the Third Proportional to 253,834.50 and 336,942

Step by Step Solution

1. Step 1: Write the proportion equation
   253,834.50 : 336,942 = 336,942 : x
2. Step 2: Convert to fraction form
   253,834.50/336,942 = 336,942/x
3. Step 3: Cross multiply
   253,834.50x = 336,942 × 336,942
4. Step 4: Simplify right side
   253,834.50x = 113,529,911,364
5. Step 5: Solve for x
   x = 113,529,911,364/253,834.50
6. Step 6: Final answer
   x = 447,259.58