Finding the Third Proportional to 561,257 and 1,231,167

Step by Step Solution

1. Step 1: Write the proportion equation
   561,257 : 1,231,167 = 1,231,167 : x
2. Step 2: Convert to fraction form
   561,257/1,231,167 = 1,231,167/x
3. Step 3: Cross multiply
   561,257x = 1,231,167 × 1,231,167
4. Step 4: Simplify right side
   561,257x = 1,515,772,181,889
5. Step 5: Solve for x
   x = 1,515,772,181,889/561,257
6. Step 6: Final answer
   x = 2,700,673.99