Finding the Third Proportional to 375,858 and 819,551.25

Step by Step Solution

1. Step 1: Write the proportion equation
   375,858 : 819,551.25 = 819,551.25 : x
2. Step 2: Convert to fraction form
   375,858/819,551.25 = 819,551.25/x
3. Step 3: Cross multiply
   375,858x = 819,551.25 × 819,551.25
4. Step 4: Simplify right side
   375,858x = 671,664,251,376.56
5. Step 5: Solve for x
   x = 671,664,251,376.56/375,858
6. Step 6: Final answer
   x = 1,787,015.98