Finding the Third Proportional to 910,680 and 1,998,510

Step by Step Solution

1. Step 1: Write the proportion equation
   910,680 : 1,998,510 = 1,998,510 : x
2. Step 2: Convert to fraction form
   910,680/1,998,510 = 1,998,510/x
3. Step 3: Cross multiply
   910,680x = 1,998,510 × 1,998,510
4. Step 4: Simplify right side
   910,680x = 3,994,042,220,100
5. Step 5: Solve for x
   x = 3,994,042,220,100/910,680
6. Step 6: Final answer
   x = 4,385,780.10