Finding the Third Proportional to 615,796 and 980,609.50

Step by Step Solution

1. Step 1: Write the proportion equation
   615,796 : 980,609.50 = 980,609.50 : x
2. Step 2: Convert to fraction form
   615,796/980,609.50 = 980,609.50/x
3. Step 3: Cross multiply
   615,796x = 980,609.50 × 980,609.50
4. Step 4: Simplify right side
   615,796x = 961,594,991,490.25
5. Step 5: Solve for x
   x = 961,594,991,490.25/615,796
6. Step 6: Final answer
   x = 1,561,547.97