Finding the Third Proportional to 819,310.50 and 1,677,978

Step by Step Solution

1. Step 1: Write the proportion equation
   819,310.50 : 1,677,978 = 1,677,978 : x
2. Step 2: Convert to fraction form
   819,310.50/1,677,978 = 1,677,978/x
3. Step 3: Cross multiply
   819,310.50x = 1,677,978 × 1,677,978
4. Step 4: Simplify right side
   819,310.50x = 2,815,610,168,484
5. Step 5: Solve for x
   x = 2,815,610,168,484/819,310.50
6. Step 6: Final answer
   x = 3,436,560.58