Finding the Third Proportional to 131,401 and 288,236

Step by Step Solution

1. Step 1: Write the proportion equation
   131,401 : 288,236 = 288,236 : x
2. Step 2: Convert to fraction form
   131,401/288,236 = 288,236/x
3. Step 3: Cross multiply
   131,401x = 288,236 × 288,236
4. Step 4: Simplify right side
   131,401x = 83,079,991,696
5. Step 5: Solve for x
   x = 83,079,991,696/131,401
6. Step 6: Final answer
   x = 632,263.01