Finding the Third Proportional to 72,705 and 158,911.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,705 : 158,911.50 = 158,911.50 : x
2. Step 2: Convert to fraction form
   72,705/158,911.50 = 158,911.50/x
3. Step 3: Cross multiply
   72,705x = 158,911.50 × 158,911.50
4. Step 4: Simplify right side
   72,705x = 25,252,864,832.25
5. Step 5: Solve for x
   x = 25,252,864,832.25/72,705
6. Step 6: Final answer
   x = 347,333.26