Finding the Third Proportional to 311,669.25 and 672,546

Step by Step Solution

1. Step 1: Write the proportion equation
   311,669.25 : 672,546 = 672,546 : x
2. Step 2: Convert to fraction form
   311,669.25/672,546 = 672,546/x
3. Step 3: Cross multiply
   311,669.25x = 672,546 × 672,546
4. Step 4: Simplify right side
   311,669.25x = 452,318,122,116
5. Step 5: Solve for x
   x = 452,318,122,116/311,669.25
6. Step 6: Final answer
   x = 1,451,276.06