Finding the Third Proportional to 290,944.50 and 451,546

Step by Step Solution

1. Step 1: Write the proportion equation
   290,944.50 : 451,546 = 451,546 : x
2. Step 2: Convert to fraction form
   290,944.50/451,546 = 451,546/x
3. Step 3: Cross multiply
   290,944.50x = 451,546 × 451,546
4. Step 4: Simplify right side
   290,944.50x = 203,893,790,116
5. Step 5: Solve for x
   x = 203,893,790,116/290,944.50
6. Step 6: Final answer
   x = 700,799.60