Finding the Third Proportional to 72,818 and 158,446

Step by Step Solution

1. Step 1: Write the proportion equation
   72,818 : 158,446 = 158,446 : x
2. Step 2: Convert to fraction form
   72,818/158,446 = 158,446/x
3. Step 3: Cross multiply
   72,818x = 158,446 × 158,446
4. Step 4: Simplify right side
   72,818x = 25,105,134,916
5. Step 5: Solve for x
   x = 25,105,134,916/72,818
6. Step 6: Final answer
   x = 344,765.51