Finding the Third Proportional to 648,907 and 1,397,646

Step by Step Solution

1. Step 1: Write the proportion equation
   648,907 : 1,397,646 = 1,397,646 : x
2. Step 2: Convert to fraction form
   648,907/1,397,646 = 1,397,646/x
3. Step 3: Cross multiply
   648,907x = 1,397,646 × 1,397,646
4. Step 4: Simplify right side
   648,907x = 1,953,414,341,316
5. Step 5: Solve for x
   x = 1,953,414,341,316/648,907
6. Step 6: Final answer
   x = 3,010,314.79