Finding the Third Proportional to 71,422 and 156,856

Step by Step Solution

1. Step 1: Write the proportion equation
   71,422 : 156,856 = 156,856 : x
2. Step 2: Convert to fraction form
   71,422/156,856 = 156,856/x
3. Step 3: Cross multiply
   71,422x = 156,856 × 156,856
4. Step 4: Simplify right side
   71,422x = 24,603,804,736
5. Step 5: Solve for x
   x = 24,603,804,736/71,422
6. Step 6: Final answer
   x = 344,484.96