Finding the Third Proportional to 998,648 and 2,137,264

Step by Step Solution

1. Step 1: Write the proportion equation
   998,648 : 2,137,264 = 2,137,264 : x
2. Step 2: Convert to fraction form
   998,648/2,137,264 = 2,137,264/x
3. Step 3: Cross multiply
   998,648x = 2,137,264 × 2,137,264
4. Step 4: Simplify right side
   998,648x = 4,567,897,405,696
5. Step 5: Solve for x
   x = 4,567,897,405,696/998,648
6. Step 6: Final answer
   x = 4,574,081.56