Finding the Third Proportional to 819,384.50 and 1,671,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   819,384.50 : 1,671,290.50 = 1,671,290.50 : x
2. Step 2: Convert to fraction form
   819,384.50/1,671,290.50 = 1,671,290.50/x
3. Step 3: Cross multiply
   819,384.50x = 1,671,290.50 × 1,671,290.50
4. Step 4: Simplify right side
   819,384.50x = 2,793,211,935,390.25
5. Step 5: Solve for x
   x = 2,793,211,935,390.25/819,384.50
6. Step 6: Final answer
   x = 3,408,914.78