Finding the Third Proportional to 131,007 and 280,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,007 : 280,711.50 = 280,711.50 : x
2. Step 2: Convert to fraction form
   131,007/280,711.50 = 280,711.50/x
3. Step 3: Cross multiply
   131,007x = 280,711.50 × 280,711.50
4. Step 4: Simplify right side
   131,007x = 78,798,946,232.25
5. Step 5: Solve for x
   x = 78,798,946,232.25/131,007
6. Step 6: Final answer
   x = 601,486.53