Finding the Third Proportional to 79,821 and 169,375.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,821 : 169,375.50 = 169,375.50 : x
2. Step 2: Convert to fraction form
   79,821/169,375.50 = 169,375.50/x
3. Step 3: Cross multiply
   79,821x = 169,375.50 × 169,375.50
4. Step 4: Simplify right side
   79,821x = 28,688,060,000.25
5. Step 5: Solve for x
   x = 28,688,060,000.25/79,821
6. Step 6: Final answer
   x = 359,404.92