Finding the Third Proportional to 342.98 and 498.34

Step by Step Solution

1. Step 1: Write the proportion equation
   342.98 : 498.34 = 498.34 : x
2. Step 2: Convert to fraction form
   342.98/498.34 = 498.34/x
3. Step 3: Cross multiply
   342.98x = 498.34 × 498.34
4. Step 4: Simplify right side
   342.98x = 248,342.60
5. Step 5: Solve for x
   x = 248,342.60/342.98
6. Step 6: Final answer
   x = 724.06