Finding the Third Proportional to 156,796 and 336,056

Step by Step Solution

1. Step 1: Write the proportion equation
   156,796 : 336,056 = 336,056 : x
2. Step 2: Convert to fraction form
   156,796/336,056 = 336,056/x
3. Step 3: Cross multiply
   156,796x = 336,056 × 336,056
4. Step 4: Simplify right side
   156,796x = 112,933,635,136
5. Step 5: Solve for x
   x = 112,933,635,136/156,796
6. Step 6: Final answer
   x = 720,258.39