Finding the Third Proportional to 529.31 and 801.42

Step by Step Solution

1. Step 1: Write the proportion equation
   529.31 : 801.42 = 801.42 : x
2. Step 2: Convert to fraction form
   529.31/801.42 = 801.42/x
3. Step 3: Cross multiply
   529.31x = 801.42 × 801.42
4. Step 4: Simplify right side
   529.31x = 642,277.02
5. Step 5: Solve for x
   x = 642,277.02/529.31
6. Step 6: Final answer
   x = 1,213.42