Finding the Third Proportional to 131,002 and 280,678.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,002 : 280,678.50 = 280,678.50 : x
2. Step 2: Convert to fraction form
   131,002/280,678.50 = 280,678.50/x
3. Step 3: Cross multiply
   131,002x = 280,678.50 × 280,678.50
4. Step 4: Simplify right side
   131,002x = 78,780,420,362.25
5. Step 5: Solve for x
   x = 78,780,420,362.25/131,002
6. Step 6: Final answer
   x = 601,368.07