Finding the Third Proportional to 72,656 and 156,788

Step by Step Solution

1. Step 1: Write the proportion equation
   72,656 : 156,788 = 156,788 : x
2. Step 2: Convert to fraction form
   72,656/156,788 = 156,788/x
3. Step 3: Cross multiply
   72,656x = 156,788 × 156,788
4. Step 4: Simplify right side
   72,656x = 24,582,476,944
5. Step 5: Solve for x
   x = 24,582,476,944/72,656
6. Step 6: Final answer
   x = 338,340.63