Finding the Third Proportional to 301,945.50 and 660,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,945.50 : 660,685.50 = 660,685.50 : x
2. Step 2: Convert to fraction form
   301,945.50/660,685.50 = 660,685.50/x
3. Step 3: Cross multiply
   301,945.50x = 660,685.50 × 660,685.50
4. Step 4: Simplify right side
   301,945.50x = 436,505,329,910.25
5. Step 5: Solve for x
   x = 436,505,329,910.25/301,945.50
6. Step 6: Final answer
   x = 1,445,642.77