Finding the Third Proportional to 168,192 and 280,309.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,192 : 280,309.50 = 280,309.50 : x
2. Step 2: Convert to fraction form
   168,192/280,309.50 = 280,309.50/x
3. Step 3: Cross multiply
   168,192x = 280,309.50 × 280,309.50
4. Step 4: Simplify right side
   168,192x = 78,573,415,790.25
5. Step 5: Solve for x
   x = 78,573,415,790.25/168,192
6. Step 6: Final answer
   x = 467,165.00