Finding the Third Proportional to 615,207 and 1,317,892

Step by Step Solution

1. Step 1: Write the proportion equation
   615,207 : 1,317,892 = 1,317,892 : x
2. Step 2: Convert to fraction form
   615,207/1,317,892 = 1,317,892/x
3. Step 3: Cross multiply
   615,207x = 1,317,892 × 1,317,892
4. Step 4: Simplify right side
   615,207x = 1,736,839,323,664
5. Step 5: Solve for x
   x = 1,736,839,323,664/615,207
6. Step 6: Final answer
   x = 2,823,178.74