Finding the Third Proportional to 131,424 and 200,392

Step by Step Solution

1. Step 1: Write the proportion equation
   131,424 : 200,392 = 200,392 : x
2. Step 2: Convert to fraction form
   131,424/200,392 = 200,392/x
3. Step 3: Cross multiply
   131,424x = 200,392 × 200,392
4. Step 4: Simplify right side
   131,424x = 40,156,953,664
5. Step 5: Solve for x
   x = 40,156,953,664/131,424
6. Step 6: Final answer
   x = 305,552.67