Finding the Third Proportional to 156,721 and 236,222

Step by Step Solution

1. Step 1: Write the proportion equation
   156,721 : 236,222 = 236,222 : x
2. Step 2: Convert to fraction form
   156,721/236,222 = 236,222/x
3. Step 3: Cross multiply
   156,721x = 236,222 × 236,222
4. Step 4: Simplify right side
   156,721x = 55,800,833,284
5. Step 5: Solve for x
   x = 55,800,833,284/156,721
6. Step 6: Final answer
   x = 356,052.05