Finding the Third Proportional to 72,276 and 156,776

Step by Step Solution

1. Step 1: Write the proportion equation
   72,276 : 156,776 = 156,776 : x
2. Step 2: Convert to fraction form
   72,276/156,776 = 156,776/x
3. Step 3: Cross multiply
   72,276x = 156,776 × 156,776
4. Step 4: Simplify right side
   72,276x = 24,578,714,176
5. Step 5: Solve for x
   x = 24,578,714,176/72,276
6. Step 6: Final answer
   x = 340,067.44