Finding the Third Proportional to 168,345 and 280,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,345 : 280,543.50 = 280,543.50 : x
2. Step 2: Convert to fraction form
   168,345/280,543.50 = 280,543.50/x
3. Step 3: Cross multiply
   168,345x = 280,543.50 × 280,543.50
4. Step 4: Simplify right side
   168,345x = 78,704,655,392.25
5. Step 5: Solve for x
   x = 78,704,655,392.25/168,345
6. Step 6: Final answer
   x = 467,520.01