Finding the Third Proportional to 72,951 and 156,990

Step by Step Solution

1. Step 1: Write the proportion equation
   72,951 : 156,990 = 156,990 : x
2. Step 2: Convert to fraction form
   72,951/156,990 = 156,990/x
3. Step 3: Cross multiply
   72,951x = 156,990 × 156,990
4. Step 4: Simplify right side
   72,951x = 24,645,860,100
5. Step 5: Solve for x
   x = 24,645,860,100/72,951
6. Step 6: Final answer
   x = 337,841.29