Finding the Third Proportional to 411,434.50 and 617,152

Step by Step Solution

1. Step 1: Write the proportion equation
   411,434.50 : 617,152 = 617,152 : x
2. Step 2: Convert to fraction form
   411,434.50/617,152 = 617,152/x
3. Step 3: Cross multiply
   411,434.50x = 617,152 × 617,152
4. Step 4: Simplify right side
   411,434.50x = 380,876,591,104
5. Step 5: Solve for x
   x = 380,876,591,104/411,434.50
6. Step 6: Final answer
   x = 925,728.38