Finding the Third Proportional to 288,763.50 and 695,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   288,763.50 : 695,665.50 = 695,665.50 : x
2. Step 2: Convert to fraction form
   288,763.50/695,665.50 = 695,665.50/x
3. Step 3: Cross multiply
   288,763.50x = 695,665.50 × 695,665.50
4. Step 4: Simplify right side
   288,763.50x = 483,950,487,890.25
5. Step 5: Solve for x
   x = 483,950,487,890.25/288,763.50
6. Step 6: Final answer
   x = 1,675,940.65