Finding the Third Proportional to 1,638,870 and 2,570,902

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,870 : 2,570,902 = 2,570,902 : x
2. Step 2: Convert to fraction form
   1,638,870/2,570,902 = 2,570,902/x
3. Step 3: Cross multiply
   1,638,870x = 2,570,902 × 2,570,902
4. Step 4: Simplify right side
   1,638,870x = 6,609,537,093,604
5. Step 5: Solve for x
   x = 6,609,537,093,604/1,638,870
6. Step 6: Final answer
   x = 4,032,984.37