Finding the Third Proportional to 917,820 and 1,968,492

Step by Step Solution

1. Step 1: Write the proportion equation
   917,820 : 1,968,492 = 1,968,492 : x
2. Step 2: Convert to fraction form
   917,820/1,968,492 = 1,968,492/x
3. Step 3: Cross multiply
   917,820x = 1,968,492 × 1,968,492
4. Step 4: Simplify right side
   917,820x = 3,874,960,754,064
5. Step 5: Solve for x
   x = 3,874,960,754,064/917,820
6. Step 6: Final answer
   x = 4,221,917.97