Finding the Third Proportional to 917,888 and 1,988,314

Step by Step Solution

1. Step 1: Write the proportion equation
   917,888 : 1,988,314 = 1,988,314 : x
2. Step 2: Convert to fraction form
   917,888/1,988,314 = 1,988,314/x
3. Step 3: Cross multiply
   917,888x = 1,988,314 × 1,988,314
4. Step 4: Simplify right side
   917,888x = 3,953,392,562,596
5. Step 5: Solve for x
   x = 3,953,392,562,596/917,888
6. Step 6: Final answer
   x = 4,307,053.33