Finding the Third Proportional to 318,253.50 and 695,556

Step by Step Solution

1. Step 1: Write the proportion equation
   318,253.50 : 695,556 = 695,556 : x
2. Step 2: Convert to fraction form
   318,253.50/695,556 = 695,556/x
3. Step 3: Cross multiply
   318,253.50x = 695,556 × 695,556
4. Step 4: Simplify right side
   318,253.50x = 483,798,149,136
5. Step 5: Solve for x
   x = 483,798,149,136/318,253.50
6. Step 6: Final answer
   x = 1,520,166.00