Finding the Third Proportional to 315,100.50 and 472,882.50

Step by Step Solution

1. Step 1: Write the proportion equation
   315,100.50 : 472,882.50 = 472,882.50 : x
2. Step 2: Convert to fraction form
   315,100.50/472,882.50 = 472,882.50/x
3. Step 3: Cross multiply
   315,100.50x = 472,882.50 × 472,882.50
4. Step 4: Simplify right side
   315,100.50x = 223,617,858,806.25
5. Step 5: Solve for x
   x = 223,617,858,806.25/315,100.50
6. Step 6: Final answer
   x = 709,671.55