Finding the Third Proportional to 615,799.50 and 980,616

Step by Step Solution

1. Step 1: Write the proportion equation
   615,799.50 : 980,616 = 980,616 : x
2. Step 2: Convert to fraction form
   615,799.50/980,616 = 980,616/x
3. Step 3: Cross multiply
   615,799.50x = 980,616 × 980,616
4. Step 4: Simplify right side
   615,799.50x = 961,607,739,456
5. Step 5: Solve for x
   x = 961,607,739,456/615,799.50
6. Step 6: Final answer
   x = 1,561,559.79