Finding the Third Proportional to 300,973.69 and 626,858.63

Step by Step Solution

1. Step 1: Write the proportion equation
   300,973.69 : 626,858.63 = 626,858.63 : x
2. Step 2: Convert to fraction form
   300,973.69/626,858.63 = 626,858.63/x
3. Step 3: Cross multiply
   300,973.69x = 626,858.63 × 626,858.63
4. Step 4: Simplify right side
   300,973.69x = 392,951,735,736.89
5. Step 5: Solve for x
   x = 392,951,735,736.89/300,973.69
6. Step 6: Final answer
   x = 1,305,601.63