Finding the Third Proportional to 375,966 and 811,858.50

Step by Step Solution

1. Step 1: Write the proportion equation
   375,966 : 811,858.50 = 811,858.50 : x
2. Step 2: Convert to fraction form
   375,966/811,858.50 = 811,858.50/x
3. Step 3: Cross multiply
   375,966x = 811,858.50 × 811,858.50
4. Step 4: Simplify right side
   375,966x = 659,114,224,022.25
5. Step 5: Solve for x
   x = 659,114,224,022.25/375,966
6. Step 6: Final answer
   x = 1,753,121.89