Finding the Third Proportional to 156,096 and 328,716

Step by Step Solution

1. Step 1: Write the proportion equation
   156,096 : 328,716 = 328,716 : x
2. Step 2: Convert to fraction form
   156,096/328,716 = 328,716/x
3. Step 3: Cross multiply
   156,096x = 328,716 × 328,716
4. Step 4: Simplify right side
   156,096x = 108,054,208,656
5. Step 5: Solve for x
   x = 108,054,208,656/156,096
6. Step 6: Final answer
   x = 692,229.20