Finding the Third Proportional to 308.94 and 429.06

Step by Step Solution

1. Step 1: Write the proportion equation
   308.94 : 429.06 = 429.06 : x
2. Step 2: Convert to fraction form
   308.94/429.06 = 429.06/x
3. Step 3: Cross multiply
   308.94x = 429.06 × 429.06
4. Step 4: Simplify right side
   308.94x = 184,094.63
5. Step 5: Solve for x
   x = 184,094.63/308.94
6. Step 6: Final answer
   x = 595.90