Finding the Third Proportional to 131,760 and 288,124

Step by Step Solution

1. Step 1: Write the proportion equation
   131,760 : 288,124 = 288,124 : x
2. Step 2: Convert to fraction form
   131,760/288,124 = 288,124/x
3. Step 3: Cross multiply
   131,760x = 288,124 × 288,124
4. Step 4: Simplify right side
   131,760x = 83,015,439,376
5. Step 5: Solve for x
   x = 83,015,439,376/131,760
6. Step 6: Final answer
   x = 630,050.39