Finding the Third Proportional to 615,420 and 1,293,042

Step by Step Solution

1. Step 1: Write the proportion equation
   615,420 : 1,293,042 = 1,293,042 : x
2. Step 2: Convert to fraction form
   615,420/1,293,042 = 1,293,042/x
3. Step 3: Cross multiply
   615,420x = 1,293,042 × 1,293,042
4. Step 4: Simplify right side
   615,420x = 1,671,957,613,764
5. Step 5: Solve for x
   x = 1,671,957,613,764/615,420
6. Step 6: Final answer
   x = 2,716,774.91