Finding the Third Proportional to 517,833 and 699,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   517,833 : 699,628.50 = 699,628.50 : x
2. Step 2: Convert to fraction form
   517,833/699,628.50 = 699,628.50/x
3. Step 3: Cross multiply
   517,833x = 699,628.50 × 699,628.50
4. Step 4: Simplify right side
   517,833x = 489,480,038,012.25
5. Step 5: Solve for x
   x = 489,480,038,012.25/517,833
6. Step 6: Final answer
   x = 945,246.90