Finding the Third Proportional to 517,441.50 and 784,910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   517,441.50 : 784,910.50 = 784,910.50 : x
2. Step 2: Convert to fraction form
   517,441.50/784,910.50 = 784,910.50/x
3. Step 3: Cross multiply
   517,441.50x = 784,910.50 × 784,910.50
4. Step 4: Simplify right side
   517,441.50x = 616,084,493,010.25
5. Step 5: Solve for x
   x = 616,084,493,010.25/517,441.50
6. Step 6: Final answer
   x = 1,190,636.03