Finding the Third Proportional to 156,945 and 322,152

Step by Step Solution

1. Step 1: Write the proportion equation
   156,945 : 322,152 = 322,152 : x
2. Step 2: Convert to fraction form
   156,945/322,152 = 322,152/x
3. Step 3: Cross multiply
   156,945x = 322,152 × 322,152
4. Step 4: Simplify right side
   156,945x = 103,781,911,104
5. Step 5: Solve for x
   x = 103,781,911,104/156,945
6. Step 6: Final answer
   x = 661,262.93