Finding the Third Proportional to 78,909 and 169,846.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,909 : 169,846.50 = 169,846.50 : x
2. Step 2: Convert to fraction form
   78,909/169,846.50 = 169,846.50/x
3. Step 3: Cross multiply
   78,909x = 169,846.50 × 169,846.50
4. Step 4: Simplify right side
   78,909x = 28,847,833,562.25
5. Step 5: Solve for x
   x = 28,847,833,562.25/78,909
6. Step 6: Final answer
   x = 365,583.57