Finding the Third Proportional to 788,171 and 1,222,917

Step by Step Solution

1. Step 1: Write the proportion equation
   788,171 : 1,222,917 = 1,222,917 : x
2. Step 2: Convert to fraction form
   788,171/1,222,917 = 1,222,917/x
3. Step 3: Cross multiply
   788,171x = 1,222,917 × 1,222,917
4. Step 4: Simplify right side
   788,171x = 1,495,525,988,889
5. Step 5: Solve for x
   x = 1,495,525,988,889/788,171
6. Step 6: Final answer
   x = 1,897,463.86