Finding the Third Proportional to 988,696 and 2,158,616

Step by Step Solution

1. Step 1: Write the proportion equation
   988,696 : 2,158,616 = 2,158,616 : x
2. Step 2: Convert to fraction form
   988,696/2,158,616 = 2,158,616/x
3. Step 3: Cross multiply
   988,696x = 2,158,616 × 2,158,616
4. Step 4: Simplify right side
   988,696x = 4,659,623,035,456
5. Step 5: Solve for x
   x = 4,659,623,035,456/988,696
6. Step 6: Final answer
   x = 4,712,897.63