Finding the Third Proportional to 311,932.50 and 472,302

Step by Step Solution

1. Step 1: Write the proportion equation
   311,932.50 : 472,302 = 472,302 : x
2. Step 2: Convert to fraction form
   311,932.50/472,302 = 472,302/x
3. Step 3: Cross multiply
   311,932.50x = 472,302 × 472,302
4. Step 4: Simplify right side
   311,932.50x = 223,069,179,204
5. Step 5: Solve for x
   x = 223,069,179,204/311,932.50
6. Step 6: Final answer
   x = 715,120.03