Finding the Third Proportional to 615,210 and 1,317,898

Step by Step Solution

1. Step 1: Write the proportion equation
   615,210 : 1,317,898 = 1,317,898 : x
2. Step 2: Convert to fraction form
   615,210/1,317,898 = 1,317,898/x
3. Step 3: Cross multiply
   615,210x = 1,317,898 × 1,317,898
4. Step 4: Simplify right side
   615,210x = 1,736,855,138,404
5. Step 5: Solve for x
   x = 1,736,855,138,404/615,210
6. Step 6: Final answer
   x = 2,823,190.68