Finding the Third Proportional to 917,848 and 1,988,212

Step by Step Solution

1. Step 1: Write the proportion equation
   917,848 : 1,988,212 = 1,988,212 : x
2. Step 2: Convert to fraction form
   917,848/1,988,212 = 1,988,212/x
3. Step 3: Cross multiply
   917,848x = 1,988,212 × 1,988,212
4. Step 4: Simplify right side
   917,848x = 3,952,986,956,944
5. Step 5: Solve for x
   x = 3,952,986,956,944/917,848
6. Step 6: Final answer
   x = 4,306,799.12