Finding the Third Proportional to 288,695 and 695,493.50

Step by Step Solution

1. Step 1: Write the proportion equation
   288,695 : 695,493.50 = 695,493.50 : x
2. Step 2: Convert to fraction form
   288,695/695,493.50 = 695,493.50/x
3. Step 3: Cross multiply
   288,695x = 695,493.50 × 695,493.50
4. Step 4: Simplify right side
   288,695x = 483,711,208,542.25
5. Step 5: Solve for x
   x = 483,711,208,542.25/288,695
6. Step 6: Final answer
   x = 1,675,509.48