Finding the Third Proportional to 156,960 and 322,262

Step by Step Solution

1. Step 1: Write the proportion equation
   156,960 : 322,262 = 322,262 : x
2. Step 2: Convert to fraction form
   156,960/322,262 = 322,262/x
3. Step 3: Cross multiply
   156,960x = 322,262 × 322,262
4. Step 4: Simplify right side
   156,960x = 103,852,796,644
5. Step 5: Solve for x
   x = 103,852,796,644/156,960
6. Step 6: Final answer
   x = 661,651.35