Finding the Third Proportional to 373,887 and 815,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   373,887 : 815,440.50 = 815,440.50 : x
2. Step 2: Convert to fraction form
   373,887/815,440.50 = 815,440.50/x
3. Step 3: Cross multiply
   373,887x = 815,440.50 × 815,440.50
4. Step 4: Simplify right side
   373,887x = 664,943,209,040.25
5. Step 5: Solve for x
   x = 664,943,209,040.25/373,887
6. Step 6: Final answer
   x = 1,778,460.36