Finding the Third Proportional to 648,912 and 1,397,654

Step by Step Solution

1. Step 1: Write the proportion equation
   648,912 : 1,397,654 = 1,397,654 : x
2. Step 2: Convert to fraction form
   648,912/1,397,654 = 1,397,654/x
3. Step 3: Cross multiply
   648,912x = 1,397,654 × 1,397,654
4. Step 4: Simplify right side
   648,912x = 1,953,436,703,716
5. Step 5: Solve for x
   x = 1,953,436,703,716/648,912
6. Step 6: Final answer
   x = 3,010,326.06