Finding the Third Proportional to 300,972.38 and 626,856

Step by Step Solution

1. Step 1: Write the proportion equation
   300,972.38 : 626,856 = 626,856 : x
2. Step 2: Convert to fraction form
   300,972.38/626,856 = 626,856/x
3. Step 3: Cross multiply
   300,972.38x = 626,856 × 626,856
4. Step 4: Simplify right side
   300,972.38x = 392,948,444,736
5. Step 5: Solve for x
   x = 392,948,444,736/300,972.38
6. Step 6: Final answer
   x = 1,305,596.38