Finding the Third Proportional to 917,208 and 1,321,122

Step by Step Solution

1. Step 1: Write the proportion equation
   917,208 : 1,321,122 = 1,321,122 : x
2. Step 2: Convert to fraction form
   917,208/1,321,122 = 1,321,122/x
3. Step 3: Cross multiply
   917,208x = 1,321,122 × 1,321,122
4. Step 4: Simplify right side
   917,208x = 1,745,363,338,884
5. Step 5: Solve for x
   x = 1,745,363,338,884/917,208
6. Step 6: Final answer
   x = 1,902,908.98