Finding the Third Proportional to 615,195 and 1,317,870

Step by Step Solution

1. Step 1: Write the proportion equation
   615,195 : 1,317,870 = 1,317,870 : x
2. Step 2: Convert to fraction form
   615,195/1,317,870 = 1,317,870/x
3. Step 3: Cross multiply
   615,195x = 1,317,870 × 1,317,870
4. Step 4: Simplify right side
   615,195x = 1,736,781,336,900
5. Step 5: Solve for x
   x = 1,736,781,336,900/615,195
6. Step 6: Final answer
   x = 2,823,139.55