Finding the Third Proportional to 791,015 and 1,638,108

Step by Step Solution

1. Step 1: Write the proportion equation
   791,015 : 1,638,108 = 1,638,108 : x
2. Step 2: Convert to fraction form
   791,015/1,638,108 = 1,638,108/x
3. Step 3: Cross multiply
   791,015x = 1,638,108 × 1,638,108
4. Step 4: Simplify right side
   791,015x = 2,683,397,819,664
5. Step 5: Solve for x
   x = 2,683,397,819,664/791,015
6. Step 6: Final answer
   x = 3,392,347.58