Finding the Third Proportional to 623,418 and 1,353,108

Step by Step Solution

1. Step 1: Write the proportion equation
   623,418 : 1,353,108 = 1,353,108 : x
2. Step 2: Convert to fraction form
   623,418/1,353,108 = 1,353,108/x
3. Step 3: Cross multiply
   623,418x = 1,353,108 × 1,353,108
4. Step 4: Simplify right side
   623,418x = 1,830,901,259,664
5. Step 5: Solve for x
   x = 1,830,901,259,664/623,418
6. Step 6: Final answer
   x = 2,936,875.84