Finding the Third Proportional to 131,476.50 and 287,964

Step by Step Solution

1. Step 1: Write the proportion equation
   131,476.50 : 287,964 = 287,964 : x
2. Step 2: Convert to fraction form
   131,476.50/287,964 = 287,964/x
3. Step 3: Cross multiply
   131,476.50x = 287,964 × 287,964
4. Step 4: Simplify right side
   131,476.50x = 82,923,265,296
5. Step 5: Solve for x
   x = 82,923,265,296/131,476.50
6. Step 6: Final answer
   x = 630,707.89