Finding the Third Proportional to 315,132 and 472,932

Step by Step Solution

1. Step 1: Write the proportion equation
   315,132 : 472,932 = 472,932 : x
2. Step 2: Convert to fraction form
   315,132/472,932 = 472,932/x
3. Step 3: Cross multiply
   315,132x = 472,932 × 472,932
4. Step 4: Simplify right side
   315,132x = 223,664,676,624
5. Step 5: Solve for x
   x = 223,664,676,624/315,132
6. Step 6: Final answer
   x = 709,749.17