Finding the Third Proportional to 355,549.50 and 775,008

Step by Step Solution

1. Step 1: Write the proportion equation
   355,549.50 : 775,008 = 775,008 : x
2. Step 2: Convert to fraction form
   355,549.50/775,008 = 775,008/x
3. Step 3: Cross multiply
   355,549.50x = 775,008 × 775,008
4. Step 4: Simplify right side
   355,549.50x = 600,637,400,064
5. Step 5: Solve for x
   x = 600,637,400,064/355,549.50
6. Step 6: Final answer
   x = 1,689,321.46