Finding the Third Proportional to 370,726.50 and 809,412

Step by Step Solution

1. Step 1: Write the proportion equation
   370,726.50 : 809,412 = 809,412 : x
2. Step 2: Convert to fraction form
   370,726.50/809,412 = 809,412/x
3. Step 3: Cross multiply
   370,726.50x = 809,412 × 809,412
4. Step 4: Simplify right side
   370,726.50x = 655,147,785,744
5. Step 5: Solve for x
   x = 655,147,785,744/370,726.50
6. Step 6: Final answer
   x = 1,767,199.77