Finding the Third Proportional to 70.31 and 104.91

Step by Step Solution

1. Step 1: Write the proportion equation
   70.31 : 104.91 = 104.91 : x
2. Step 2: Convert to fraction form
   70.31/104.91 = 104.91/x
3. Step 3: Cross multiply
   70.31x = 104.91 × 104.91
4. Step 4: Simplify right side
   70.31x = 11,005.32
5. Step 5: Solve for x
   x = 11,005.32/70.31
6. Step 6: Final answer
   x = 156.52